Home / 614,769.90-921,170.70-404,161.80

Finding the Fourth Proportional to 614,769.90, 921,170.70 and 404,161.80

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Solution

The fourth proportional to 614,769.90, 921,170.70 and 404,161.80 is: 605,595.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,769.90 : 921,170.70 = 404,161.80 : x
  2. Step 2: Convert to fraction form
    614,769.90/921,170.70 = 404,161.80/x
  3. Step 3: Cross multiply
    614,769.90x = 921,170.70 × 404,161.80
  4. Step 4: Simplify right side
    614,769.90x = 372,302,008,219.26
  5. Step 5: Solve for x
    x = 372,302,008,219.26/614,769.90
  6. Step 6: Final answer
    x = 605,595.70

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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.