Home / 519,260.10-778,890.15-239,324.10

Finding the Fourth Proportional to 519,260.10, 778,890.15 and 239,324.10

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Solution

The fourth proportional to 519,260.10, 778,890.15 and 239,324.10 is: 358,986.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,260.10 : 778,890.15 = 239,324.10 : x
  2. Step 2: Convert to fraction form
    519,260.10/778,890.15 = 239,324.10/x
  3. Step 3: Cross multiply
    519,260.10x = 778,890.15 × 239,324.10
  4. Step 4: Simplify right side
    519,260.10x = 186,407,184,147.62
  5. Step 5: Solve for x
    x = 186,407,184,147.62/519,260.10
  6. Step 6: Final answer
    x = 358,986.15

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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.