Home / 448,134.10-672,201.15-403,810.90

Finding the Fourth Proportional to 448,134.10, 672,201.15 and 403,810.90

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Solution

The fourth proportional to 448,134.10, 672,201.15 and 403,810.90 is: 605,716.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,134.10 : 672,201.15 = 403,810.90 : x
  2. Step 2: Convert to fraction form
    448,134.10/672,201.15 = 403,810.90/x
  3. Step 3: Cross multiply
    448,134.10x = 672,201.15 × 403,810.90
  4. Step 4: Simplify right side
    448,134.10x = 271,442,151,362.54
  5. Step 5: Solve for x
    x = 271,442,151,362.54/448,134.10
  6. Step 6: Final answer
    x = 605,716.35

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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.