Home / 687,440.01-948,677.47-381,536.12

Finding the Fourth Proportional to 687,440.01, 948,677.47 and 381,536.12

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Solution

The fourth proportional to 687,440.01, 948,677.47 and 381,536.12 is: 526,525.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,440.01 : 948,677.47 = 381,536.12 : x
  2. Step 2: Convert to fraction form
    687,440.01/948,677.47 = 381,536.12/x
  3. Step 3: Cross multiply
    687,440.01x = 948,677.47 × 381,536.12
  4. Step 4: Simplify right side
    687,440.01x = 361,954,722,453.07
  5. Step 5: Solve for x
    x = 361,954,722,453.07/687,440.01
  6. Step 6: Final answer
    x = 526,525.54

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.