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Finding the Fourth Proportional to 404,485,062.60, 606,727,593.90 and 400,453,984.20

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Solution

The fourth proportional to 404,485,062.60, 606,727,593.90 and 400,453,984.20 is: 600,680,976.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,485,062.60 : 606,727,593.90 = 400,453,984.20 : x
  2. Step 2: Convert to fraction form
    404,485,062.60/606,727,593.90 = 400,453,984.20/x
  3. Step 3: Cross multiply
    404,485,062.60x = 606,727,593.90 × 400,453,984.20
  4. Step 4: Simplify right side
    404,485,062.60x = 242,966,482,301,334,592
  5. Step 5: Solve for x
    x = 242,966,482,301,334,592/404,485,062.60
  6. Step 6: Final answer
    x = 600,680,976.30

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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.