Home / 361,421.11-498,755.15-198,076.36

Finding the Fourth Proportional to 361,421.11, 498,755.15 and 198,076.36

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Solution

The fourth proportional to 361,421.11, 498,755.15 and 198,076.36 is: 273,342.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,421.11 : 498,755.15 = 198,076.36 : x
  2. Step 2: Convert to fraction form
    361,421.11/498,755.15 = 198,076.36/x
  3. Step 3: Cross multiply
    361,421.11x = 498,755.15 × 198,076.36
  4. Step 4: Simplify right side
    361,421.11x = 98,791,604,643.25
  5. Step 5: Solve for x
    x = 98,791,604,643.25/361,421.11
  6. Step 6: Final answer
    x = 273,342.10

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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.