Home / 497,844.16-687,023.98-271,489.66

Finding the Fourth Proportional to 497,844.16, 687,023.98 and 271,489.66

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Solution

The fourth proportional to 497,844.16, 687,023.98 and 271,489.66 is: 374,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,844.16 : 687,023.98 = 271,489.66 : x
  2. Step 2: Convert to fraction form
    497,844.16/687,023.98 = 271,489.66/x
  3. Step 3: Cross multiply
    497,844.16x = 687,023.98 × 271,489.66
  4. Step 4: Simplify right side
    497,844.16x = 186,519,904,345.76
  5. Step 5: Solve for x
    x = 186,519,904,345.76/497,844.16
  6. Step 6: Final answer
    x = 374,655.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.