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Finding the Fourth Proportional to 552,562.30, 762,124.93 and 487,917.48

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Solution

The fourth proportional to 552,562.30, 762,124.93 and 487,917.48 is: 672,963.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,562.30 : 762,124.93 = 487,917.48 : x
  2. Step 2: Convert to fraction form
    552,562.30/762,124.93 = 487,917.48/x
  3. Step 3: Cross multiply
    552,562.30x = 762,124.93 × 487,917.48
  4. Step 4: Simplify right side
    552,562.30x = 371,854,076,484.83
  5. Step 5: Solve for x
    x = 371,854,076,484.83/552,562.30
  6. Step 6: Final answer
    x = 672,963.17

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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.