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Finding the Fourth Proportional to 583,306.75, 804,963.32 and 315,034.75

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Solution

The fourth proportional to 583,306.75, 804,963.32 and 315,034.75 is: 434,747.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,306.75 : 804,963.32 = 315,034.75 : x
  2. Step 2: Convert to fraction form
    583,306.75/804,963.32 = 315,034.75/x
  3. Step 3: Cross multiply
    583,306.75x = 804,963.32 × 315,034.75
  4. Step 4: Simplify right side
    583,306.75x = 253,591,418,275.37
  5. Step 5: Solve for x
    x = 253,591,418,275.37/583,306.75
  6. Step 6: Final answer
    x = 434,747.96

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Double scale
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1.5x scale

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.