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Finding the Fourth Proportional to 439,080.64, 605,931.90 and 237,876.64

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Solution

The fourth proportional to 439,080.64, 605,931.90 and 237,876.64 is: 328,270.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,080.64 : 605,931.90 = 237,876.64 : x
  2. Step 2: Convert to fraction form
    439,080.64/605,931.90 = 237,876.64/x
  3. Step 3: Cross multiply
    439,080.64x = 605,931.90 × 237,876.64
  4. Step 4: Simplify right side
    439,080.64x = 144,137,044,440.82
  5. Step 5: Solve for x
    x = 144,137,044,440.82/439,080.64
  6. Step 6: Final answer
    x = 328,270.10

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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.