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Finding the Fourth Proportional to 997,681.68, 1,376,781 and 562,099.92

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Solution

The fourth proportional to 997,681.68, 1,376,781 and 562,099.92 is: 775,686.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,681.68 : 1,376,781 = 562,099.92 : x
  2. Step 2: Convert to fraction form
    997,681.68/1,376,781 = 562,099.92/x
  3. Step 3: Cross multiply
    997,681.68x = 1,376,781 × 562,099.92
  4. Step 4: Simplify right side
    997,681.68x = 773,888,489,957.52
  5. Step 5: Solve for x
    x = 773,888,489,957.52/997,681.68
  6. Step 6: Final answer
    x = 775,686.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.