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Finding the Fourth Proportional to 340,400.44, 469,748.80 and 187,435.52

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Solution

The fourth proportional to 340,400.44, 469,748.80 and 187,435.52 is: 258,658.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,400.44 : 469,748.80 = 187,435.52 : x
  2. Step 2: Convert to fraction form
    340,400.44/469,748.80 = 187,435.52/x
  3. Step 3: Cross multiply
    340,400.44x = 469,748.80 × 187,435.52
  4. Step 4: Simplify right side
    340,400.44x = 88,047,610,244.48
  5. Step 5: Solve for x
    x = 88,047,610,244.48/340,400.44
  6. Step 6: Final answer
    x = 258,658.92

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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.