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Finding the Fourth Proportional to 531,904.20, 797,856.30 and 266,183.70

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Solution

The fourth proportional to 531,904.20, 797,856.30 and 266,183.70 is: 399,275.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,904.20 : 797,856.30 = 266,183.70 : x
  2. Step 2: Convert to fraction form
    531,904.20/797,856.30 = 266,183.70/x
  3. Step 3: Cross multiply
    531,904.20x = 797,856.30 × 266,183.70
  4. Step 4: Simplify right side
    531,904.20x = 212,376,342,002.31
  5. Step 5: Solve for x
    x = 212,376,342,002.31/531,904.20
  6. Step 6: Final answer
    x = 399,275.55

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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.