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Finding the Fourth Proportional to 298,254.61, 447,057.51 and 148,605.49

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Solution

The fourth proportional to 298,254.61, 447,057.51 and 148,605.49 is: 222,746.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,254.61 : 447,057.51 = 148,605.49 : x
  2. Step 2: Convert to fraction form
    298,254.61/447,057.51 = 148,605.49/x
  3. Step 3: Cross multiply
    298,254.61x = 447,057.51 × 148,605.49
  4. Step 4: Simplify right side
    298,254.61x = 66,435,200,331.73
  5. Step 5: Solve for x
    x = 66,435,200,331.73/298,254.61
  6. Step 6: Final answer
    x = 222,746.60

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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.