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Finding the Fourth Proportional to 402,884,806.80, 604,327,210.20 and 372,273,805.20

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Solution

The fourth proportional to 402,884,806.80, 604,327,210.20 and 372,273,805.20 is: 558,410,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,884,806.80 : 604,327,210.20 = 372,273,805.20 : x
  2. Step 2: Convert to fraction form
    402,884,806.80/604,327,210.20 = 372,273,805.20/x
  3. Step 3: Cross multiply
    402,884,806.80x = 604,327,210.20 × 372,273,805.20
  4. Step 4: Simplify right side
    402,884,806.80x = 224,975,190,127,054,272
  5. Step 5: Solve for x
    x = 224,975,190,127,054,272/402,884,806.80
  6. Step 6: Final answer
    x = 558,410,707.80

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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.