Home / 928,685.40-1,393,028.10-609,820.80

Finding the Fourth Proportional to 928,685.40, 1,393,028.10 and 609,820.80

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Solution

The fourth proportional to 928,685.40, 1,393,028.10 and 609,820.80 is: 914,731.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,685.40 : 1,393,028.10 = 609,820.80 : x
  2. Step 2: Convert to fraction form
    928,685.40/1,393,028.10 = 609,820.80/x
  3. Step 3: Cross multiply
    928,685.40x = 1,393,028.10 × 609,820.80
  4. Step 4: Simplify right side
    928,685.40x = 849,497,510,364.48
  5. Step 5: Solve for x
    x = 849,497,510,364.48/928,685.40
  6. Step 6: Final answer
    x = 914,731.20

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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.