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Finding the Fourth Proportional to 641,177.83, 884,851.46 and 354,692.98

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Solution

The fourth proportional to 641,177.83, 884,851.46 and 354,692.98 is: 489,490.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,177.83 : 884,851.46 = 354,692.98 : x
  2. Step 2: Convert to fraction form
    641,177.83/884,851.46 = 354,692.98/x
  3. Step 3: Cross multiply
    641,177.83x = 884,851.46 × 354,692.98
  4. Step 4: Simplify right side
    641,177.83x = 313,850,601,204.75
  5. Step 5: Solve for x
    x = 313,850,601,204.75/641,177.83
  6. Step 6: Final answer
    x = 489,490.73

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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.