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Finding the Fourth Proportional to 1,406,799.11, 1,941,380.10 and 762,236.75

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Solution

The fourth proportional to 1,406,799.11, 1,941,380.10 and 762,236.75 is: 1,051,885.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,406,799.11 : 1,941,380.10 = 762,236.75 : x
  2. Step 2: Convert to fraction form
    1,406,799.11/1,941,380.10 = 762,236.75/x
  3. Step 3: Cross multiply
    1,406,799.11x = 1,941,380.10 × 762,236.75
  4. Step 4: Simplify right side
    1,406,799.11x = 1,479,791,257,938.68
  5. Step 5: Solve for x
    x = 1,479,791,257,938.68/1,406,799.11
  6. Step 6: Final answer
    x = 1,051,885.27

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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.