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Finding the Fourth Proportional to 500,624.52, 690,862.68 and 271,182.48

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Solution

The fourth proportional to 500,624.52, 690,862.68 and 271,182.48 is: 374,232.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,624.52 : 690,862.68 = 271,182.48 : x
  2. Step 2: Convert to fraction form
    500,624.52/690,862.68 = 271,182.48/x
  3. Step 3: Cross multiply
    500,624.52x = 690,862.68 × 271,182.48
  4. Step 4: Simplify right side
    500,624.52x = 187,349,854,901.85
  5. Step 5: Solve for x
    x = 187,349,854,901.85/500,624.52
  6. Step 6: Final answer
    x = 374,232.28

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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.