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Finding the Fourth Proportional to 552,345.73, 762,170.15 and 307,272.58

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Solution

The fourth proportional to 552,345.73, 762,170.15 and 307,272.58 is: 423,998.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,345.73 : 762,170.15 = 307,272.58 : x
  2. Step 2: Convert to fraction form
    552,345.73/762,170.15 = 307,272.58/x
  3. Step 3: Cross multiply
    552,345.73x = 762,170.15 × 307,272.58
  4. Step 4: Simplify right side
    552,345.73x = 234,193,988,389.49
  5. Step 5: Solve for x
    x = 234,193,988,389.49/552,345.73
  6. Step 6: Final answer
    x = 423,998.91

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1.5x scale

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.