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Finding the Fourth Proportional to 543,062.40, 814,589.55 and 163,982.40

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Solution

The fourth proportional to 543,062.40, 814,589.55 and 163,982.40 is: 245,972.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,062.40 : 814,589.55 = 163,982.40 : x
  2. Step 2: Convert to fraction form
    543,062.40/814,589.55 = 163,982.40/x
  3. Step 3: Cross multiply
    543,062.40x = 814,589.55 × 163,982.40
  4. Step 4: Simplify right side
    543,062.40x = 133,578,349,423.92
  5. Step 5: Solve for x
    x = 133,578,349,423.92/543,062.40
  6. Step 6: Final answer
    x = 245,972.38

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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.