Home / 461,320.80-691,981.20-283,250.40

Finding the Fourth Proportional to 461,320.80, 691,981.20 and 283,250.40

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Solution

The fourth proportional to 461,320.80, 691,981.20 and 283,250.40 is: 424,875.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,320.80 : 691,981.20 = 283,250.40 : x
  2. Step 2: Convert to fraction form
    461,320.80/691,981.20 = 283,250.40/x
  3. Step 3: Cross multiply
    461,320.80x = 691,981.20 × 283,250.40
  4. Step 4: Simplify right side
    461,320.80x = 196,003,951,692.48
  5. Step 5: Solve for x
    x = 196,003,951,692.48/461,320.80
  6. Step 6: Final answer
    x = 424,875.60

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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.