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Finding the Fourth Proportional to 495,189.31, 686,857.38 and 482,064.16

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Solution

The fourth proportional to 495,189.31, 686,857.38 and 482,064.16 is: 668,652.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,189.31 : 686,857.38 = 482,064.16 : x
  2. Step 2: Convert to fraction form
    495,189.31/686,857.38 = 482,064.16/x
  3. Step 3: Cross multiply
    495,189.31x = 686,857.38 × 482,064.16
  4. Step 4: Simplify right side
    495,189.31x = 331,109,328,053.95
  5. Step 5: Solve for x
    x = 331,109,328,053.95/495,189.31
  6. Step 6: Final answer
    x = 668,652.01

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.