Home / 354,934.17-489,805.43-193,788.72

Finding the Fourth Proportional to 354,934.17, 489,805.43 and 193,788.72

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Solution

The fourth proportional to 354,934.17, 489,805.43 and 193,788.72 is: 267,426.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,934.17 : 489,805.43 = 193,788.72 : x
  2. Step 2: Convert to fraction form
    354,934.17/489,805.43 = 193,788.72/x
  3. Step 3: Cross multiply
    354,934.17x = 489,805.43 × 193,788.72
  4. Step 4: Simplify right side
    354,934.17x = 94,918,766,359.81
  5. Step 5: Solve for x
    x = 94,918,766,359.81/354,934.17
  6. Step 6: Final answer
    x = 267,426.40

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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.