Home / 738,105.92-1,018,589.28-415,819.92

Finding the Fourth Proportional to 738,105.92, 1,018,589.28 and 415,819.92

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Solution

The fourth proportional to 738,105.92, 1,018,589.28 and 415,819.92 is: 573,833.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,105.92 : 1,018,589.28 = 415,819.92 : x
  2. Step 2: Convert to fraction form
    738,105.92/1,018,589.28 = 415,819.92/x
  3. Step 3: Cross multiply
    738,105.92x = 1,018,589.28 × 415,819.92
  4. Step 4: Simplify right side
    738,105.92x = 423,549,712,922.46
  5. Step 5: Solve for x
    x = 423,549,712,922.46/738,105.92
  6. Step 6: Final answer
    x = 573,833.24

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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.