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Finding the Fourth Proportional to 426,372.76, 588,413.46 and 245,143.48

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Solution

The fourth proportional to 426,372.76, 588,413.46 and 245,143.48 is: 338,308.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,372.76 : 588,413.46 = 245,143.48 : x
  2. Step 2: Convert to fraction form
    426,372.76/588,413.46 = 245,143.48/x
  3. Step 3: Cross multiply
    426,372.76x = 588,413.46 × 245,143.48
  4. Step 4: Simplify right side
    426,372.76x = 144,245,723,263.24
  5. Step 5: Solve for x
    x = 144,245,723,263.24/426,372.76
  6. Step 6: Final answer
    x = 338,308.96

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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.