Home / 614,784.90-921,193.20-404,176.80

Finding the Fourth Proportional to 614,784.90, 921,193.20 and 404,176.80

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Solution

The fourth proportional to 614,784.90, 921,193.20 and 404,176.80 is: 605,618.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,784.90 : 921,193.20 = 404,176.80 : x
  2. Step 2: Convert to fraction form
    614,784.90/921,193.20 = 404,176.80/x
  3. Step 3: Cross multiply
    614,784.90x = 921,193.20 × 404,176.80
  4. Step 4: Simplify right side
    614,784.90x = 372,324,919,757.76
  5. Step 5: Solve for x
    x = 372,324,919,757.76/614,784.90
  6. Step 6: Final answer
    x = 605,618.19

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1.5x scale

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.