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Finding the Fourth Proportional to 572,801.30, 859,312.59 and 217,787.73

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Solution

The fourth proportional to 572,801.30, 859,312.59 and 217,787.73 is: 326,723.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,801.30 : 859,312.59 = 217,787.73 : x
  2. Step 2: Convert to fraction form
    572,801.30/859,312.59 = 217,787.73/x
  3. Step 3: Cross multiply
    572,801.30x = 859,312.59 × 217,787.73
  4. Step 4: Simplify right side
    572,801.30x = 187,147,738,336.52
  5. Step 5: Solve for x
    x = 187,147,738,336.52/572,801.30
  6. Step 6: Final answer
    x = 326,723.66

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Double scale
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Similar ratio
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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.