Home / 926,822.10-1,390,233.15-394,209.30

Finding the Fourth Proportional to 926,822.10, 1,390,233.15 and 394,209.30

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Solution

The fourth proportional to 926,822.10, 1,390,233.15 and 394,209.30 is: 591,313.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,822.10 : 1,390,233.15 = 394,209.30 : x
  2. Step 2: Convert to fraction form
    926,822.10/1,390,233.15 = 394,209.30/x
  3. Step 3: Cross multiply
    926,822.10x = 1,390,233.15 × 394,209.30
  4. Step 4: Simplify right side
    926,822.10x = 548,042,836,898.30
  5. Step 5: Solve for x
    x = 548,042,836,898.30/926,822.10
  6. Step 6: Final answer
    x = 591,313.95

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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.