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Finding the Fourth Proportional to 871,000.12, 1,304,219.22 and 570,535.48

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Solution

The fourth proportional to 871,000.12, 1,304,219.22 and 570,535.48 is: 854,309.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,000.12 : 1,304,219.22 = 570,535.48 : x
  2. Step 2: Convert to fraction form
    871,000.12/1,304,219.22 = 570,535.48/x
  3. Step 3: Cross multiply
    871,000.12x = 1,304,219.22 × 570,535.48
  4. Step 4: Simplify right side
    871,000.12x = 744,103,338,707.93
  5. Step 5: Solve for x
    x = 744,103,338,707.93/871,000.12
  6. Step 6: Final answer
    x = 854,309.11

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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.