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Finding the Fourth Proportional to 522,034.70, 783,052.05 and 312,082.70

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Solution

The fourth proportional to 522,034.70, 783,052.05 and 312,082.70 is: 468,124.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,034.70 : 783,052.05 = 312,082.70 : x
  2. Step 2: Convert to fraction form
    522,034.70/783,052.05 = 312,082.70/x
  3. Step 3: Cross multiply
    522,034.70x = 783,052.05 × 312,082.70
  4. Step 4: Simplify right side
    522,034.70x = 244,376,998,004.54
  5. Step 5: Solve for x
    x = 244,376,998,004.54/522,034.70
  6. Step 6: Final answer
    x = 468,124.05

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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.