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Finding the Fourth Proportional to 712,638,047.60, 999,053,755.60 and 712,638,047.60

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Solution

The fourth proportional to 712,638,047.60, 999,053,755.60 and 712,638,047.60 is: 999,053,755.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,638,047.60 : 999,053,755.60 = 712,638,047.60 : x
  2. Step 2: Convert to fraction form
    712,638,047.60/999,053,755.60 = 712,638,047.60/x
  3. Step 3: Cross multiply
    712,638,047.60x = 999,053,755.60 × 712,638,047.60
  4. Step 4: Simplify right side
    712,638,047.60x = 711,963,717,838,231,552
  5. Step 5: Solve for x
    x = 711,963,717,838,231,552/712,638,047.60
  6. Step 6: Final answer
    x = 999,053,755.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.