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Finding the Fourth Proportional to 356,959.47, 535,441.05 and 120,304.20

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Solution

The fourth proportional to 356,959.47, 535,441.05 and 120,304.20 is: 180,456.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,959.47 : 535,441.05 = 120,304.20 : x
  2. Step 2: Convert to fraction form
    356,959.47/535,441.05 = 120,304.20/x
  3. Step 3: Cross multiply
    356,959.47x = 535,441.05 × 120,304.20
  4. Step 4: Simplify right side
    356,959.47x = 64,415,807,167.41
  5. Step 5: Solve for x
    x = 64,415,807,167.41/356,959.47
  6. Step 6: Final answer
    x = 180,456.92

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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.