Home / 591,721.70-887,582.55-402,764.90

Finding the Fourth Proportional to 591,721.70, 887,582.55 and 402,764.90

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Solution

The fourth proportional to 591,721.70, 887,582.55 and 402,764.90 is: 604,147.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,721.70 : 887,582.55 = 402,764.90 : x
  2. Step 2: Convert to fraction form
    591,721.70/887,582.55 = 402,764.90/x
  3. Step 3: Cross multiply
    591,721.70x = 887,582.55 × 402,764.90
  4. Step 4: Simplify right side
    591,721.70x = 357,487,096,992.50
  5. Step 5: Solve for x
    x = 357,487,096,992.50/591,721.70
  6. Step 6: Final answer
    x = 604,147.35

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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.