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Finding the Fourth Proportional to 574,636.87, 793,034.69 and 316,513.77

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Solution

The fourth proportional to 574,636.87, 793,034.69 and 316,513.77 is: 436,808.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,636.87 : 793,034.69 = 316,513.77 : x
  2. Step 2: Convert to fraction form
    574,636.87/793,034.69 = 316,513.77/x
  3. Step 3: Cross multiply
    574,636.87x = 793,034.69 × 316,513.77
  4. Step 4: Simplify right side
    574,636.87x = 251,006,399,472.68
  5. Step 5: Solve for x
    x = 251,006,399,472.68/574,636.87
  6. Step 6: Final answer
    x = 436,808.73

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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.