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Finding the Fourth Proportional to 624,637,160.72, 931,371,319.89 and 607,475,644.12

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Solution

The fourth proportional to 624,637,160.72, 931,371,319.89 and 607,475,644.12 is: 905,782,473.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,637,160.72 : 931,371,319.89 = 607,475,644.12 : x
  2. Step 2: Convert to fraction form
    624,637,160.72/931,371,319.89 = 607,475,644.12/x
  3. Step 3: Cross multiply
    624,637,160.72x = 931,371,319.89 × 607,475,644.12
  4. Step 4: Simplify right side
    624,637,160.72x = 565,785,392,465,072,320
  5. Step 5: Solve for x
    x = 565,785,392,465,072,320/624,637,160.72
  6. Step 6: Final answer
    x = 905,782,473.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.