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Finding the Fourth Proportional to 449,459.76, 619,199.04 and 313,246.11

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Solution

The fourth proportional to 449,459.76, 619,199.04 and 313,246.11 is: 431,544.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,459.76 : 619,199.04 = 313,246.11 : x
  2. Step 2: Convert to fraction form
    449,459.76/619,199.04 = 313,246.11/x
  3. Step 3: Cross multiply
    449,459.76x = 619,199.04 × 313,246.11
  4. Step 4: Simplify right side
    449,459.76x = 193,961,690,595.73
  5. Step 5: Solve for x
    x = 193,961,690,595.73/449,459.76
  6. Step 6: Final answer
    x = 431,544.06

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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.