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Finding the Fourth Proportional to 359,253,790.80, 538,880,686.20 and 359,253,790.80

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Solution

The fourth proportional to 359,253,790.80, 538,880,686.20 and 359,253,790.80 is: 538,880,686.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,253,790.80 : 538,880,686.20 = 359,253,790.80 : x
  2. Step 2: Convert to fraction form
    359,253,790.80/538,880,686.20 = 359,253,790.80/x
  3. Step 3: Cross multiply
    359,253,790.80x = 538,880,686.20 × 359,253,790.80
  4. Step 4: Simplify right side
    359,253,790.80x = 193,594,929,306,255,264
  5. Step 5: Solve for x
    x = 193,594,929,306,255,264/359,253,790.80
  6. Step 6: Final answer
    x = 538,880,686.20

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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.