Home / 653,828.20-980,742.30-543,236.20

Finding the Fourth Proportional to 653,828.20, 980,742.30 and 543,236.20

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Solution

The fourth proportional to 653,828.20, 980,742.30 and 543,236.20 is: 814,854.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,828.20 : 980,742.30 = 543,236.20 : x
  2. Step 2: Convert to fraction form
    653,828.20/980,742.30 = 543,236.20/x
  3. Step 3: Cross multiply
    653,828.20x = 980,742.30 × 543,236.20
  4. Step 4: Simplify right side
    653,828.20x = 532,774,720,231.26
  5. Step 5: Solve for x
    x = 532,774,720,231.26/653,828.20
  6. Step 6: Final answer
    x = 814,854.30

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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.