Home / 836,460.15-1,254,717.50-398,184.78

Finding the Fourth Proportional to 836,460.15, 1,254,717.50 and 398,184.78

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Solution

The fourth proportional to 836,460.15, 1,254,717.50 and 398,184.78 is: 597,290.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,460.15 : 1,254,717.50 = 398,184.78 : x
  2. Step 2: Convert to fraction form
    836,460.15/1,254,717.50 = 398,184.78/x
  3. Step 3: Cross multiply
    836,460.15x = 1,254,717.50 × 398,184.78
  4. Step 4: Simplify right side
    836,460.15x = 499,609,408,476.03
  5. Step 5: Solve for x
    x = 499,609,408,476.03/836,460.15
  6. Step 6: Final answer
    x = 597,290.15

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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.