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Finding the Fourth Proportional to 584,572, 806,709.92 and 329,917.72

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Solution

The fourth proportional to 584,572, 806,709.92 and 329,917.72 is: 455,286.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,572 : 806,709.92 = 329,917.72 : x
  2. Step 2: Convert to fraction form
    584,572/806,709.92 = 329,917.72/x
  3. Step 3: Cross multiply
    584,572x = 806,709.92 × 329,917.72
  4. Step 4: Simplify right side
    584,572x = 266,147,897,507.78
  5. Step 5: Solve for x
    x = 266,147,897,507.78/584,572
  6. Step 6: Final answer
    x = 455,286.77

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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.