Home / 872,590.20-1,204,388.22-533,342.76

Finding the Fourth Proportional to 872,590.20, 1,204,388.22 and 533,342.76

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Solution

The fourth proportional to 872,590.20, 1,204,388.22 and 533,342.76 is: 736,143.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,590.20 : 1,204,388.22 = 533,342.76 : x
  2. Step 2: Convert to fraction form
    872,590.20/1,204,388.22 = 533,342.76/x
  3. Step 3: Cross multiply
    872,590.20x = 1,204,388.22 × 533,342.76
  4. Step 4: Simplify right side
    872,590.20x = 642,351,737,366.29
  5. Step 5: Solve for x
    x = 642,351,737,366.29/872,590.20
  6. Step 6: Final answer
    x = 736,143.65

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Double scale
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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.