Home / 527,743.20-790,124.40-410,779.20

Finding the Fourth Proportional to 527,743.20, 790,124.40 and 410,779.20

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Solution

The fourth proportional to 527,743.20, 790,124.40 and 410,779.20 is: 615,008.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,743.20 : 790,124.40 = 410,779.20 : x
  2. Step 2: Convert to fraction form
    527,743.20/790,124.40 = 410,779.20/x
  3. Step 3: Cross multiply
    527,743.20x = 790,124.40 × 410,779.20
  4. Step 4: Simplify right side
    527,743.20x = 324,566,668,932.48
  5. Step 5: Solve for x
    x = 324,566,668,932.48/527,743.20
  6. Step 6: Final answer
    x = 615,008.72

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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.