Home / 519,251.10-778,876.65-239,315.10

Finding the Fourth Proportional to 519,251.10, 778,876.65 and 239,315.10

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Solution

The fourth proportional to 519,251.10, 778,876.65 and 239,315.10 is: 358,972.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,251.10 : 778,876.65 = 239,315.10 : x
  2. Step 2: Convert to fraction form
    519,251.10/778,876.65 = 239,315.10/x
  3. Step 3: Cross multiply
    519,251.10x = 778,876.65 × 239,315.10
  4. Step 4: Simplify right side
    519,251.10x = 186,396,943,382.42
  5. Step 5: Solve for x
    x = 186,396,943,382.42/519,251.10
  6. Step 6: Final answer
    x = 358,972.65

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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.