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Finding the Fourth Proportional to 6,645,643.60, 9,968,465.40 and 1,596,954.10

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Solution

The fourth proportional to 6,645,643.60, 9,968,465.40 and 1,596,954.10 is: 2,395,431.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,645,643.60 : 9,968,465.40 = 1,596,954.10 : x
  2. Step 2: Convert to fraction form
    6,645,643.60/9,968,465.40 = 1,596,954.10/x
  3. Step 3: Cross multiply
    6,645,643.60x = 9,968,465.40 × 1,596,954.10
  4. Step 4: Simplify right side
    6,645,643.60x = 15,919,181,691,238.14
  5. Step 5: Solve for x
    x = 15,919,181,691,238.14/6,645,643.60
  6. Step 6: Final answer
    x = 2,395,431.15

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.