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Finding the Fourth Proportional to 466,836.80, 698,642.40 and 279,982.40

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Solution

The fourth proportional to 466,836.80, 698,642.40 and 279,982.40 is: 419,006.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,836.80 : 698,642.40 = 279,982.40 : x
  2. Step 2: Convert to fraction form
    466,836.80/698,642.40 = 279,982.40/x
  3. Step 3: Cross multiply
    466,836.80x = 698,642.40 × 279,982.40
  4. Step 4: Simplify right side
    466,836.80x = 195,607,575,893.76
  5. Step 5: Solve for x
    x = 195,607,575,893.76/466,836.80
  6. Step 6: Final answer
    x = 419,006.33

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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.