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Finding the Fourth Proportional to 567,248.06, 782,818.73 and 312,615.65

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Solution

The fourth proportional to 567,248.06, 782,818.73 and 312,615.65 is: 431,418.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,248.06 : 782,818.73 = 312,615.65 : x
  2. Step 2: Convert to fraction form
    567,248.06/782,818.73 = 312,615.65/x
  3. Step 3: Cross multiply
    567,248.06x = 782,818.73 × 312,615.65
  4. Step 4: Simplify right side
    567,248.06x = 244,721,387,677.40
  5. Step 5: Solve for x
    x = 244,721,387,677.40/567,248.06
  6. Step 6: Final answer
    x = 431,418.64

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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.