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Finding the Fourth Proportional to 410,014.20, 615,482.10 and 316,932.60

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Solution

The fourth proportional to 410,014.20, 615,482.10 and 316,932.60 is: 475,755.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,014.20 : 615,482.10 = 316,932.60 : x
  2. Step 2: Convert to fraction form
    410,014.20/615,482.10 = 316,932.60/x
  3. Step 3: Cross multiply
    410,014.20x = 615,482.10 × 316,932.60
  4. Step 4: Simplify right side
    410,014.20x = 195,066,342,206.46
  5. Step 5: Solve for x
    x = 195,066,342,206.46/410,014.20
  6. Step 6: Final answer
    x = 475,755.09

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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.