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Finding the Fourth Proportional to 329,209.49, 454,346.03 and 185,978.76

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Solution

The fourth proportional to 329,209.49, 454,346.03 and 185,978.76 is: 256,671.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,209.49 : 454,346.03 = 185,978.76 : x
  2. Step 2: Convert to fraction form
    329,209.49/454,346.03 = 185,978.76/x
  3. Step 3: Cross multiply
    329,209.49x = 454,346.03 × 185,978.76
  4. Step 4: Simplify right side
    329,209.49x = 84,498,710,340.43
  5. Step 5: Solve for x
    x = 84,498,710,340.43/329,209.49
  6. Step 6: Final answer
    x = 256,671.55

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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.