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Finding the Fourth Proportional to 573,541,689.60, 858,720,009.60 and 557,616,441.60

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Solution

The fourth proportional to 573,541,689.60, 858,720,009.60 and 557,616,441.60 is: 834,876,356.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,541,689.60 : 858,720,009.60 = 557,616,441.60 : x
  2. Step 2: Convert to fraction form
    573,541,689.60/858,720,009.60 = 557,616,441.60/x
  3. Step 3: Cross multiply
    573,541,689.60x = 858,720,009.60 × 557,616,441.60
  4. Step 4: Simplify right side
    573,541,689.60x = 478,836,396,083,869,888
  5. Step 5: Solve for x
    x = 478,836,396,083,869,888/573,541,689.60
  6. Step 6: Final answer
    x = 834,876,356.45

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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.