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Finding the Fourth Proportional to 403,555.32, 605,122.78 and 150,627.79

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Solution

The fourth proportional to 403,555.32, 605,122.78 and 150,627.79 is: 225,863.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,555.32 : 605,122.78 = 150,627.79 : x
  2. Step 2: Convert to fraction form
    403,555.32/605,122.78 = 150,627.79/x
  3. Step 3: Cross multiply
    403,555.32x = 605,122.78 × 150,627.79
  4. Step 4: Simplify right side
    403,555.32x = 91,148,307,030.06
  5. Step 5: Solve for x
    x = 91,148,307,030.06/403,555.32
  6. Step 6: Final answer
    x = 225,863.23

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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.