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Finding the Fourth Proportional to 410,221.60, 615,332.40 and 173,502.88

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Solution

The fourth proportional to 410,221.60, 615,332.40 and 173,502.88 is: 260,254.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,221.60 : 615,332.40 = 173,502.88 : x
  2. Step 2: Convert to fraction form
    410,221.60/615,332.40 = 173,502.88/x
  3. Step 3: Cross multiply
    410,221.60x = 615,332.40 × 173,502.88
  4. Step 4: Simplify right side
    410,221.60x = 106,761,943,557.31
  5. Step 5: Solve for x
    x = 106,761,943,557.31/410,221.60
  6. Step 6: Final answer
    x = 260,254.32

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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.