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Finding the Fourth Proportional to 403,556.60, 556,641.42 and 252,391.16

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Solution

The fourth proportional to 403,556.60, 556,641.42 and 252,391.16 is: 348,133.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,556.60 : 556,641.42 = 252,391.16 : x
  2. Step 2: Convert to fraction form
    403,556.60/556,641.42 = 252,391.16/x
  3. Step 3: Cross multiply
    403,556.60x = 556,641.42 × 252,391.16
  4. Step 4: Simplify right side
    403,556.60x = 140,491,373,697.85
  5. Step 5: Solve for x
    x = 140,491,373,697.85/403,556.60
  6. Step 6: Final answer
    x = 348,133.01

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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.