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Finding the Fourth Proportional to 480,335.43, 662,954.31 and 316,704.09

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Solution

The fourth proportional to 480,335.43, 662,954.31 and 316,704.09 is: 437,111.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,335.43 : 662,954.31 = 316,704.09 : x
  2. Step 2: Convert to fraction form
    480,335.43/662,954.31 = 316,704.09/x
  3. Step 3: Cross multiply
    480,335.43x = 662,954.31 × 316,704.09
  4. Step 4: Simplify right side
    480,335.43x = 209,960,341,460.13
  5. Step 5: Solve for x
    x = 209,960,341,460.13/480,335.43
  6. Step 6: Final answer
    x = 437,111.92

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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.