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Finding the Fourth Proportional to 521,950.10, 782,925.15 and 127,966.10

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Solution

The fourth proportional to 521,950.10, 782,925.15 and 127,966.10 is: 191,949.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,950.10 : 782,925.15 = 127,966.10 : x
  2. Step 2: Convert to fraction form
    521,950.10/782,925.15 = 127,966.10/x
  3. Step 3: Cross multiply
    521,950.10x = 782,925.15 × 127,966.10
  4. Step 4: Simplify right side
    521,950.10x = 100,187,874,122.79
  5. Step 5: Solve for x
    x = 100,187,874,122.79/521,950.10
  6. Step 6: Final answer
    x = 191,949.14

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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.