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Finding the Fourth Proportional to 575,726.42, 794,489.72 and 317,603.57

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Solution

The fourth proportional to 575,726.42, 794,489.72 and 317,603.57 is: 438,285.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,726.42 : 794,489.72 = 317,603.57 : x
  2. Step 2: Convert to fraction form
    575,726.42/794,489.72 = 317,603.57/x
  3. Step 3: Cross multiply
    575,726.42x = 794,489.72 × 317,603.57
  4. Step 4: Simplify right side
    575,726.42x = 252,332,765,839.83
  5. Step 5: Solve for x
    x = 252,332,765,839.83/575,726.42
  6. Step 6: Final answer
    x = 438,285.89

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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.