Home / 672,066.10-1,008,099.15-639,406.90

Finding the Fourth Proportional to 672,066.10, 1,008,099.15 and 639,406.90

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Solution

The fourth proportional to 672,066.10, 1,008,099.15 and 639,406.90 is: 959,110.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,066.10 : 1,008,099.15 = 639,406.90 : x
  2. Step 2: Convert to fraction form
    672,066.10/1,008,099.15 = 639,406.90/x
  3. Step 3: Cross multiply
    672,066.10x = 1,008,099.15 × 639,406.90
  4. Step 4: Simplify right side
    672,066.10x = 644,585,552,394.14
  5. Step 5: Solve for x
    x = 644,585,552,394.14/672,066.10
  6. Step 6: Final answer
    x = 959,110.35

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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.