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Finding the Fourth Proportional to 384,057.66, 529,851.75 and 240,567.90

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Solution

The fourth proportional to 384,057.66, 529,851.75 and 240,567.90 is: 331,891.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,057.66 : 529,851.75 = 240,567.90 : x
  2. Step 2: Convert to fraction form
    384,057.66/529,851.75 = 240,567.90/x
  3. Step 3: Cross multiply
    384,057.66x = 529,851.75 × 240,567.90
  4. Step 4: Simplify right side
    384,057.66x = 127,465,322,808.83
  5. Step 5: Solve for x
    x = 127,465,322,808.83/384,057.66
  6. Step 6: Final answer
    x = 331,891.11

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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.