Home / 432,856.30-649,284.45-283,557.10

Finding the Fourth Proportional to 432,856.30, 649,284.45 and 283,557.10

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Solution

The fourth proportional to 432,856.30, 649,284.45 and 283,557.10 is: 425,335.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,856.30 : 649,284.45 = 283,557.10 : x
  2. Step 2: Convert to fraction form
    432,856.30/649,284.45 = 283,557.10/x
  3. Step 3: Cross multiply
    432,856.30x = 649,284.45 × 283,557.10
  4. Step 4: Simplify right side
    432,856.30x = 184,109,215,717.10
  5. Step 5: Solve for x
    x = 184,109,215,717.10/432,856.30
  6. Step 6: Final answer
    x = 425,335.65

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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.