Home / 643,392.28-965,095.40-194,117.17

Finding the Fourth Proportional to 643,392.28, 965,095.40 and 194,117.17

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Solution

The fourth proportional to 643,392.28, 965,095.40 and 194,117.17 is: 291,177.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,392.28 : 965,095.40 = 194,117.17 : x
  2. Step 2: Convert to fraction form
    643,392.28/965,095.40 = 194,117.17/x
  3. Step 3: Cross multiply
    643,392.28x = 965,095.40 × 194,117.17
  4. Step 4: Simplify right side
    643,392.28x = 187,341,587,828.02
  5. Step 5: Solve for x
    x = 187,341,587,828.02/643,392.28
  6. Step 6: Final answer
    x = 291,177.86

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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.