Home / 693,434.10-1,040,151.15-398,522.10

Finding the Fourth Proportional to 693,434.10, 1,040,151.15 and 398,522.10

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Solution

The fourth proportional to 693,434.10, 1,040,151.15 and 398,522.10 is: 597,783.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,434.10 : 1,040,151.15 = 398,522.10 : x
  2. Step 2: Convert to fraction form
    693,434.10/1,040,151.15 = 398,522.10/x
  3. Step 3: Cross multiply
    693,434.10x = 1,040,151.15 × 398,522.10
  4. Step 4: Simplify right side
    693,434.10x = 414,523,220,615.42
  5. Step 5: Solve for x
    x = 414,523,220,615.42/693,434.10
  6. Step 6: Final answer
    x = 597,783.15

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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.