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Finding the Fourth Proportional to 527,771.20, 790,166.40 and 410,807.20

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Solution

The fourth proportional to 527,771.20, 790,166.40 and 410,807.20 is: 615,050.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,771.20 : 790,166.40 = 410,807.20 : x
  2. Step 2: Convert to fraction form
    527,771.20/790,166.40 = 410,807.20/x
  3. Step 3: Cross multiply
    527,771.20x = 790,166.40 × 410,807.20
  4. Step 4: Simplify right side
    527,771.20x = 324,606,046,318.08
  5. Step 5: Solve for x
    x = 324,606,046,318.08/527,771.20
  6. Step 6: Final answer
    x = 615,050.70

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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.