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Finding the Fourth Proportional to 526,681.59, 726,815.43 and 284,958.86

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Solution

The fourth proportional to 526,681.59, 726,815.43 and 284,958.86 is: 393,240.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,681.59 : 726,815.43 = 284,958.86 : x
  2. Step 2: Convert to fraction form
    526,681.59/726,815.43 = 284,958.86/x
  3. Step 3: Cross multiply
    526,681.59x = 726,815.43 × 284,958.86
  4. Step 4: Simplify right side
    526,681.59x = 207,112,496,817.47
  5. Step 5: Solve for x
    x = 207,112,496,817.47/526,681.59
  6. Step 6: Final answer
    x = 393,240.43

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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.