Home / 527,231.20-790,846.80-386,226.40

Finding the Fourth Proportional to 527,231.20, 790,846.80 and 386,226.40

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Solution

The fourth proportional to 527,231.20, 790,846.80 and 386,226.40 is: 579,339.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,231.20 : 790,846.80 = 386,226.40 : x
  2. Step 2: Convert to fraction form
    527,231.20/790,846.80 = 386,226.40/x
  3. Step 3: Cross multiply
    527,231.20x = 790,846.80 × 386,226.40
  4. Step 4: Simplify right side
    527,231.20x = 305,445,912,515.52
  5. Step 5: Solve for x
    x = 305,445,912,515.52/527,231.20
  6. Step 6: Final answer
    x = 579,339.60

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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.