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Finding the Fourth Proportional to 308,436.64, 425,652.88 and 174,309.28

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Solution

The fourth proportional to 308,436.64, 425,652.88 and 174,309.28 is: 240,552.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,436.64 : 425,652.88 = 174,309.28 : x
  2. Step 2: Convert to fraction form
    308,436.64/425,652.88 = 174,309.28/x
  3. Step 3: Cross multiply
    308,436.64x = 425,652.88 × 174,309.28
  4. Step 4: Simplify right side
    308,436.64x = 74,195,247,042.73
  5. Step 5: Solve for x
    x = 74,195,247,042.73/308,436.64
  6. Step 6: Final answer
    x = 240,552.64

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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.