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Finding the Fourth Proportional to 583,347.89, 805,198 and 338,394.55

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Solution

The fourth proportional to 583,347.89, 805,198 and 338,394.55 is: 467,087.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,347.89 : 805,198 = 338,394.55 : x
  2. Step 2: Convert to fraction form
    583,347.89/805,198 = 338,394.55/x
  3. Step 3: Cross multiply
    583,347.89x = 805,198 × 338,394.55
  4. Step 4: Simplify right side
    583,347.89x = 272,474,614,870.90
  5. Step 5: Solve for x
    x = 272,474,614,870.90/583,347.89
  6. Step 6: Final answer
    x = 467,087.68

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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.