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Finding the Fourth Proportional to 543,145.41, 814,670.26 and 243,545.58

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Solution

The fourth proportional to 543,145.41, 814,670.26 and 243,545.58 is: 365,296.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,145.41 : 814,670.26 = 243,545.58 : x
  2. Step 2: Convert to fraction form
    543,145.41/814,670.26 = 243,545.58/x
  3. Step 3: Cross multiply
    543,145.41x = 814,670.26 × 243,545.58
  4. Step 4: Simplify right side
    543,145.41x = 198,409,340,371.59
  5. Step 5: Solve for x
    x = 198,409,340,371.59/543,145.41
  6. Step 6: Final answer
    x = 365,296.91

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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.