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Finding the Fourth Proportional to 542,664.77, 814,156.32 and 243,078.71

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Solution

The fourth proportional to 542,664.77, 814,156.32 and 243,078.71 is: 364,689.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,664.77 : 814,156.32 = 243,078.71 : x
  2. Step 2: Convert to fraction form
    542,664.77/814,156.32 = 243,078.71/x
  3. Step 3: Cross multiply
    542,664.77x = 814,156.32 × 243,078.71
  4. Step 4: Simplify right side
    542,664.77x = 197,904,068,003.95
  5. Step 5: Solve for x
    x = 197,904,068,003.95/542,664.77
  6. Step 6: Final answer
    x = 364,689.36

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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.