Home / 393,292.11-542,434.78-269,186.64

Finding the Fourth Proportional to 393,292.11, 542,434.78 and 269,186.64

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Solution

The fourth proportional to 393,292.11, 542,434.78 and 269,186.64 is: 371,266.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,292.11 : 542,434.78 = 269,186.64 : x
  2. Step 2: Convert to fraction form
    393,292.11/542,434.78 = 269,186.64/x
  3. Step 3: Cross multiply
    393,292.11x = 542,434.78 × 269,186.64
  4. Step 4: Simplify right side
    393,292.11x = 146,016,195,686.71
  5. Step 5: Solve for x
    x = 146,016,195,686.71/393,292.11
  6. Step 6: Final answer
    x = 371,266.53

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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.