Home / 289,026.36-398,967.12-193,498.20

Finding the Fourth Proportional to 289,026.36, 398,967.12 and 193,498.20

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Solution

The fourth proportional to 289,026.36, 398,967.12 and 193,498.20 is: 267,101.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,026.36 : 398,967.12 = 193,498.20 : x
  2. Step 2: Convert to fraction form
    289,026.36/398,967.12 = 193,498.20/x
  3. Step 3: Cross multiply
    289,026.36x = 398,967.12 × 193,498.20
  4. Step 4: Simplify right side
    289,026.36x = 77,199,419,579.18
  5. Step 5: Solve for x
    x = 77,199,419,579.18/289,026.36
  6. Step 6: Final answer
    x = 267,101.66

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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.