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Finding the Fourth Proportional to 552,656.92, 762,661.15 and 307,637.79

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Solution

The fourth proportional to 552,656.92, 762,661.15 and 307,637.79 is: 424,537.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,656.92 : 762,661.15 = 307,637.79 : x
  2. Step 2: Convert to fraction form
    552,656.92/762,661.15 = 307,637.79/x
  3. Step 3: Cross multiply
    552,656.92x = 762,661.15 × 307,637.79
  4. Step 4: Simplify right side
    552,656.92x = 234,623,389,935.76
  5. Step 5: Solve for x
    x = 234,623,389,935.76/552,656.92
  6. Step 6: Final answer
    x = 424,537.15

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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.