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Finding the Fourth Proportional to 579,570.30, 869,355.45 and 517,568.85

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Solution

The fourth proportional to 579,570.30, 869,355.45 and 517,568.85 is: 776,353.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,570.30 : 869,355.45 = 517,568.85 : x
  2. Step 2: Convert to fraction form
    579,570.30/869,355.45 = 517,568.85/x
  3. Step 3: Cross multiply
    579,570.30x = 869,355.45 × 517,568.85
  4. Step 4: Simplify right side
    579,570.30x = 449,951,300,497.73
  5. Step 5: Solve for x
    x = 449,951,300,497.73/579,570.30
  6. Step 6: Final answer
    x = 776,353.28

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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.