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Finding the Fourth Proportional to 375,671.31, 518,479.55 and 232,477.48

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Solution

The fourth proportional to 375,671.31, 518,479.55 and 232,477.48 is: 320,851.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,671.31 : 518,479.55 = 232,477.48 : x
  2. Step 2: Convert to fraction form
    375,671.31/518,479.55 = 232,477.48/x
  3. Step 3: Cross multiply
    375,671.31x = 518,479.55 × 232,477.48
  4. Step 4: Simplify right side
    375,671.31x = 120,534,819,215.53
  5. Step 5: Solve for x
    x = 120,534,819,215.53/375,671.31
  6. Step 6: Final answer
    x = 320,851.81

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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.