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Finding the Fourth Proportional to 403,429.80, 556,320.54 and 267,416.52

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Solution

The fourth proportional to 403,429.80, 556,320.54 and 267,416.52 is: 368,761.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,429.80 : 556,320.54 = 267,416.52 : x
  2. Step 2: Convert to fraction form
    403,429.80/556,320.54 = 267,416.52/x
  3. Step 3: Cross multiply
    403,429.80x = 556,320.54 × 267,416.52
  4. Step 4: Simplify right side
    403,429.80x = 148,769,302,811.32
  5. Step 5: Solve for x
    x = 148,769,302,811.32/403,429.80
  6. Step 6: Final answer
    x = 368,761.31

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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.