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Finding the Fourth Proportional to 641,180.83, 884,855.60 and 354,695.98

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Solution

The fourth proportional to 641,180.83, 884,855.60 and 354,695.98 is: 489,494.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,180.83 : 884,855.60 = 354,695.98 : x
  2. Step 2: Convert to fraction form
    641,180.83/884,855.60 = 354,695.98/x
  3. Step 3: Cross multiply
    641,180.83x = 884,855.60 × 354,695.98
  4. Step 4: Simplify right side
    641,180.83x = 313,854,724,200.49
  5. Step 5: Solve for x
    x = 313,854,724,200.49/641,180.83
  6. Step 6: Final answer
    x = 489,494.87

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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.