Home / 539,901.20-745,070.76-298,183.04

Finding the Fourth Proportional to 539,901.20, 745,070.76 and 298,183.04

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Solution

The fourth proportional to 539,901.20, 745,070.76 and 298,183.04 is: 411,496.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,901.20 : 745,070.76 = 298,183.04 : x
  2. Step 2: Convert to fraction form
    539,901.20/745,070.76 = 298,183.04/x
  3. Step 3: Cross multiply
    539,901.20x = 745,070.76 × 298,183.04
  4. Step 4: Simplify right side
    539,901.20x = 222,167,464,231.91
  5. Step 5: Solve for x
    x = 222,167,464,231.91/539,901.20
  6. Step 6: Final answer
    x = 411,496.52

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.