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Finding the Fourth Proportional to 558,974.80, 838,462.20 and 402,677.20

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Solution

The fourth proportional to 558,974.80, 838,462.20 and 402,677.20 is: 604,015.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,974.80 : 838,462.20 = 402,677.20 : x
  2. Step 2: Convert to fraction form
    558,974.80/838,462.20 = 402,677.20/x
  3. Step 3: Cross multiply
    558,974.80x = 838,462.20 × 402,677.20
  4. Step 4: Simplify right side
    558,974.80x = 337,629,611,001.84
  5. Step 5: Solve for x
    x = 337,629,611,001.84/558,974.80
  6. Step 6: Final answer
    x = 604,015.80

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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.