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Finding the Fourth Proportional to 1,185,241,901.02, 1,635,734,265.75 and 656,771,656.21

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Solution

The fourth proportional to 1,185,241,901.02, 1,635,734,265.75 and 656,771,656.21 is: 906,400,543.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,241,901.02 : 1,635,734,265.75 = 656,771,656.21 : x
  2. Step 2: Convert to fraction form
    1,185,241,901.02/1,635,734,265.75 = 656,771,656.21/x
  3. Step 3: Cross multiply
    1,185,241,901.02x = 1,635,734,265.75 × 656,771,656.21
  4. Step 4: Simplify right side
    1,185,241,901.02x = 1,074,303,902,836,075,904
  5. Step 5: Solve for x
    x = 1,074,303,902,836,075,904/1,185,241,901.02
  6. Step 6: Final answer
    x = 906,400,543.14

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Double scale
Find fourth proportional to 1,185,241,902.02, 1,635,734,267.13 and 656,771,657.21
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.