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Finding the Fourth Proportional to 372,220,885.60, 558,331,328.40 and 372,220,885.60

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Solution

The fourth proportional to 372,220,885.60, 558,331,328.40 and 372,220,885.60 is: 558,331,328.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,220,885.60 : 558,331,328.40 = 372,220,885.60 : x
  2. Step 2: Convert to fraction form
    372,220,885.60/558,331,328.40 = 372,220,885.60/x
  3. Step 3: Cross multiply
    372,220,885.60x = 558,331,328.40 × 372,220,885.60
  4. Step 4: Simplify right side
    372,220,885.60x = 207,822,581,515,272,448
  5. Step 5: Solve for x
    x = 207,822,581,515,272,448/372,220,885.60
  6. Step 6: Final answer
    x = 558,331,328.40

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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.