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Finding the Fourth Proportional to 356,040.40, 534,406.20 and 178,747.60

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Solution

The fourth proportional to 356,040.40, 534,406.20 and 178,747.60 is: 268,294.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,040.40 : 534,406.20 = 178,747.60 : x
  2. Step 2: Convert to fraction form
    356,040.40/534,406.20 = 178,747.60/x
  3. Step 3: Cross multiply
    356,040.40x = 534,406.20 × 178,747.60
  4. Step 4: Simplify right side
    356,040.40x = 95,523,825,675.12
  5. Step 5: Solve for x
    x = 95,523,825,675.12/356,040.40
  6. Step 6: Final answer
    x = 268,294.91

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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.