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Finding the Fourth Proportional to 288,766.40, 398,603.15 and 174,049.14

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Solution

The fourth proportional to 288,766.40, 398,603.15 and 174,049.14 is: 240,251.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,766.40 : 398,603.15 = 174,049.14 : x
  2. Step 2: Convert to fraction form
    288,766.40/398,603.15 = 174,049.14/x
  3. Step 3: Cross multiply
    288,766.40x = 398,603.15 × 174,049.14
  4. Step 4: Simplify right side
    288,766.40x = 69,376,534,588.55
  5. Step 5: Solve for x
    x = 69,376,534,588.55/288,766.40
  6. Step 6: Final answer
    x = 240,251.41

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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.