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Finding the Fourth Proportional to 583,391.80, 875,087.70 and 331,449.40

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Solution

The fourth proportional to 583,391.80, 875,087.70 and 331,449.40 is: 497,174.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,391.80 : 875,087.70 = 331,449.40 : x
  2. Step 2: Convert to fraction form
    583,391.80/875,087.70 = 331,449.40/x
  3. Step 3: Cross multiply
    583,391.80x = 875,087.70 × 331,449.40
  4. Step 4: Simplify right side
    583,391.80x = 290,047,293,112.38
  5. Step 5: Solve for x
    x = 290,047,293,112.38/583,391.80
  6. Step 6: Final answer
    x = 497,174.10

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.