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Finding the Fourth Proportional to 571,641.80, 857,794.85 and 256,098.71

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Solution

The fourth proportional to 571,641.80, 857,794.85 and 256,098.71 is: 384,296.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,641.80 : 857,794.85 = 256,098.71 : x
  2. Step 2: Convert to fraction form
    571,641.80/857,794.85 = 256,098.71/x
  3. Step 3: Cross multiply
    571,641.80x = 857,794.85 × 256,098.71
  4. Step 4: Simplify right side
    571,641.80x = 219,680,148,960.18
  5. Step 5: Solve for x
    x = 219,680,148,960.18/571,641.80
  6. Step 6: Final answer
    x = 384,296.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.