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Finding the Fourth Proportional to 329,305.47, 454,442.01 and 178,402.47

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Solution

The fourth proportional to 329,305.47, 454,442.01 and 178,402.47 is: 246,195.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,305.47 : 454,442.01 = 178,402.47 : x
  2. Step 2: Convert to fraction form
    329,305.47/454,442.01 = 178,402.47/x
  3. Step 3: Cross multiply
    329,305.47x = 454,442.01 × 178,402.47
  4. Step 4: Simplify right side
    329,305.47x = 81,073,574,783.55
  5. Step 5: Solve for x
    x = 81,073,574,783.55/329,305.47
  6. Step 6: Final answer
    x = 246,195.66

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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.