Home / 527,177.20-727,458.24-312,280.96

Finding the Fourth Proportional to 527,177.20, 727,458.24 and 312,280.96

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Solution

The fourth proportional to 527,177.20, 727,458.24 and 312,280.96 is: 430,920.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,177.20 : 727,458.24 = 312,280.96 : x
  2. Step 2: Convert to fraction form
    527,177.20/727,458.24 = 312,280.96/x
  3. Step 3: Cross multiply
    527,177.20x = 727,458.24 × 312,280.96
  4. Step 4: Simplify right side
    527,177.20x = 227,171,357,547.11
  5. Step 5: Solve for x
    x = 227,171,357,547.11/527,177.20
  6. Step 6: Final answer
    x = 430,920.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.