Home / 681,166.33-939,938.92-419,480.10

Finding the Fourth Proportional to 681,166.33, 939,938.92 and 419,480.10

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Solution

The fourth proportional to 681,166.33, 939,938.92 and 419,480.10 is: 578,839.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,166.33 : 939,938.92 = 419,480.10 : x
  2. Step 2: Convert to fraction form
    681,166.33/939,938.92 = 419,480.10/x
  3. Step 3: Cross multiply
    681,166.33x = 939,938.92 × 419,480.10
  4. Step 4: Simplify right side
    681,166.33x = 394,285,671,106.79
  5. Step 5: Solve for x
    x = 394,285,671,106.79/681,166.33
  6. Step 6: Final answer
    x = 578,839.05

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Double scale
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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.