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Finding the Fourth Proportional to 543,437.30, 815,182.16 and 178,690.83

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Solution

The fourth proportional to 543,437.30, 815,182.16 and 178,690.83 is: 268,044.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,437.30 : 815,182.16 = 178,690.83 : x
  2. Step 2: Convert to fraction form
    543,437.30/815,182.16 = 178,690.83/x
  3. Step 3: Cross multiply
    543,437.30x = 815,182.16 × 178,690.83
  4. Step 4: Simplify right side
    543,437.30x = 145,665,571,802.23
  5. Step 5: Solve for x
    x = 145,665,571,802.23/543,437.30
  6. Step 6: Final answer
    x = 268,044.86

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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.