Home / 527,230.20-790,845.30-386,225.40

Finding the Fourth Proportional to 527,230.20, 790,845.30 and 386,225.40

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Solution

The fourth proportional to 527,230.20, 790,845.30 and 386,225.40 is: 579,338.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,230.20 : 790,845.30 = 386,225.40 : x
  2. Step 2: Convert to fraction form
    527,230.20/790,845.30 = 386,225.40/x
  3. Step 3: Cross multiply
    527,230.20x = 790,845.30 × 386,225.40
  4. Step 4: Simplify right side
    527,230.20x = 305,444,542,330.62
  5. Step 5: Solve for x
    x = 305,444,542,330.62/527,230.20
  6. Step 6: Final answer
    x = 579,338.10

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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.