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Finding the Fourth Proportional to 495,990.67, 684,530.44 and 292,060.57

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Solution

The fourth proportional to 495,990.67, 684,530.44 and 292,060.57 is: 403,080.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,990.67 : 684,530.44 = 292,060.57 : x
  2. Step 2: Convert to fraction form
    495,990.67/684,530.44 = 292,060.57/x
  3. Step 3: Cross multiply
    495,990.67x = 684,530.44 × 292,060.57
  4. Step 4: Simplify right side
    495,990.67x = 199,924,350,488.75
  5. Step 5: Solve for x
    x = 199,924,350,488.75/495,990.67
  6. Step 6: Final answer
    x = 403,080.87

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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.