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Finding the Fourth Proportional to 440,178.40, 660,073.20 and 173,850.40

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Solution

The fourth proportional to 440,178.40, 660,073.20 and 173,850.40 is: 260,698.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,178.40 : 660,073.20 = 173,850.40 : x
  2. Step 2: Convert to fraction form
    440,178.40/660,073.20 = 173,850.40/x
  3. Step 3: Cross multiply
    440,178.40x = 660,073.20 × 173,850.40
  4. Step 4: Simplify right side
    440,178.40x = 114,753,989,849.28
  5. Step 5: Solve for x
    x = 114,753,989,849.28/440,178.40
  6. Step 6: Final answer
    x = 260,698.82

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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.