Home / 681,061.92-939,865.45-394,748.08

Finding the Fourth Proportional to 681,061.92, 939,865.45 and 394,748.08

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Solution

The fourth proportional to 681,061.92, 939,865.45 and 394,748.08 is: 544,752.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,061.92 : 939,865.45 = 394,748.08 : x
  2. Step 2: Convert to fraction form
    681,061.92/939,865.45 = 394,748.08/x
  3. Step 3: Cross multiply
    681,061.92x = 939,865.45 × 394,748.08
  4. Step 4: Simplify right side
    681,061.92x = 371,010,085,646.43
  5. Step 5: Solve for x
    x = 371,010,085,646.43/681,061.92
  6. Step 6: Final answer
    x = 544,752.35

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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.