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Finding the Fourth Proportional to 1,185,241,902.02, 1,635,734,267.13 and 656,771,657.21

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Solution

The fourth proportional to 1,185,241,902.02, 1,635,734,267.13 and 656,771,657.21 is: 906,400,544.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,241,902.02 : 1,635,734,267.13 = 656,771,657.21 : x
  2. Step 2: Convert to fraction form
    1,185,241,902.02/1,635,734,267.13 = 656,771,657.21/x
  3. Step 3: Cross multiply
    1,185,241,902.02x = 1,635,734,267.13 × 656,771,657.21
  4. Step 4: Simplify right side
    1,185,241,902.02x = 1,074,303,905,378,155,008
  5. Step 5: Solve for x
    x = 1,074,303,905,378,155,008/1,185,241,902.02
  6. Step 6: Final answer
    x = 906,400,544.52

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Double scale
Find fourth proportional to 1,185,241,903.02, 1,635,734,268.51 and 656,771,658.21
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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.