Home / 928,625.40-1,392,938.10-609,760.80

Finding the Fourth Proportional to 928,625.40, 1,392,938.10 and 609,760.80

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Solution

The fourth proportional to 928,625.40, 1,392,938.10 and 609,760.80 is: 914,641.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,625.40 : 1,392,938.10 = 609,760.80 : x
  2. Step 2: Convert to fraction form
    928,625.40/1,392,938.10 = 609,760.80/x
  3. Step 3: Cross multiply
    928,625.40x = 1,392,938.10 × 609,760.80
  4. Step 4: Simplify right side
    928,625.40x = 849,359,050,206.48
  5. Step 5: Solve for x
    x = 849,359,050,206.48/928,625.40
  6. Step 6: Final answer
    x = 914,641.20

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Double scale
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Similar ratio
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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.