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Finding the Fourth Proportional to 500,925.74, 691,285.90 and 271,490.39

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Solution

The fourth proportional to 500,925.74, 691,285.90 and 271,490.39 is: 374,661.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,925.74 : 691,285.90 = 271,490.39 : x
  2. Step 2: Convert to fraction form
    500,925.74/691,285.90 = 271,490.39/x
  3. Step 3: Cross multiply
    500,925.74x = 691,285.90 × 271,490.39
  4. Step 4: Simplify right side
    500,925.74x = 187,677,475,136.07
  5. Step 5: Solve for x
    x = 187,677,475,136.07/500,925.74
  6. Step 6: Final answer
    x = 374,661.27

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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.