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Finding the Fourth Proportional to 422,595.84, 583,186.88 and 231,605.12

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Solution

The fourth proportional to 422,595.84, 583,186.88 and 231,605.12 is: 319,617.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,595.84 : 583,186.88 = 231,605.12 : x
  2. Step 2: Convert to fraction form
    422,595.84/583,186.88 = 231,605.12/x
  3. Step 3: Cross multiply
    422,595.84x = 583,186.88 × 231,605.12
  4. Step 4: Simplify right side
    422,595.84x = 135,069,067,324.83
  5. Step 5: Solve for x
    x = 135,069,067,324.83/422,595.84
  6. Step 6: Final answer
    x = 319,617.60

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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.