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Finding the Fourth Proportional to 542,979.70, 814,239.15 and 262,582.90

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Solution

The fourth proportional to 542,979.70, 814,239.15 and 262,582.90 is: 393,762.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,979.70 : 814,239.15 = 262,582.90 : x
  2. Step 2: Convert to fraction form
    542,979.70/814,239.15 = 262,582.90/x
  3. Step 3: Cross multiply
    542,979.70x = 814,239.15 × 262,582.90
  4. Step 4: Simplify right side
    542,979.70x = 213,805,277,300.54
  5. Step 5: Solve for x
    x = 213,805,277,300.54/542,979.70
  6. Step 6: Final answer
    x = 393,762.93

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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.