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Finding the Fourth Proportional to 292,423.43, 403,574.29 and 210,818.94

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Solution

The fourth proportional to 292,423.43, 403,574.29 and 210,818.94 is: 290,951.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,423.43 : 403,574.29 = 210,818.94 : x
  2. Step 2: Convert to fraction form
    292,423.43/403,574.29 = 210,818.94/x
  3. Step 3: Cross multiply
    292,423.43x = 403,574.29 × 210,818.94
  4. Step 4: Simplify right side
    292,423.43x = 85,081,103,394.72
  5. Step 5: Solve for x
    x = 85,081,103,394.72/292,423.43
  6. Step 6: Final answer
    x = 290,951.73

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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.