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Finding the Fourth Proportional to 577,866,229.20, 866,799,343.80 and 371,241,968.40

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Solution

The fourth proportional to 577,866,229.20, 866,799,343.80 and 371,241,968.40 is: 556,862,952.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,866,229.20 : 866,799,343.80 = 371,241,968.40 : x
  2. Step 2: Convert to fraction form
    577,866,229.20/866,799,343.80 = 371,241,968.40/x
  3. Step 3: Cross multiply
    577,866,229.20x = 866,799,343.80 × 371,241,968.40
  4. Step 4: Simplify right side
    577,866,229.20x = 321,792,294,600,140,288
  5. Step 5: Solve for x
    x = 321,792,294,600,140,288/577,866,229.20
  6. Step 6: Final answer
    x = 556,862,952.60

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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.