Home / 403,905.30-605,857.95-137,966.10

Finding the Fourth Proportional to 403,905.30, 605,857.95 and 137,966.10

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Solution

The fourth proportional to 403,905.30, 605,857.95 and 137,966.10 is: 206,949.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,905.30 : 605,857.95 = 137,966.10 : x
  2. Step 2: Convert to fraction form
    403,905.30/605,857.95 = 137,966.10/x
  3. Step 3: Cross multiply
    403,905.30x = 605,857.95 × 137,966.10
  4. Step 4: Simplify right side
    403,905.30x = 83,587,858,515.50
  5. Step 5: Solve for x
    x = 83,587,858,515.50/403,905.30
  6. Step 6: Final answer
    x = 206,949.15

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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.