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Finding the Fourth Proportional to 591,394.80, 887,218.56 and 217,417.80

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Solution

The fourth proportional to 591,394.80, 887,218.56 and 217,417.80 is: 326,173.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,394.80 : 887,218.56 = 217,417.80 : x
  2. Step 2: Convert to fraction form
    591,394.80/887,218.56 = 217,417.80/x
  3. Step 3: Cross multiply
    591,394.80x = 887,218.56 × 217,417.80
  4. Step 4: Simplify right side
    591,394.80x = 192,897,107,434.37
  5. Step 5: Solve for x
    x = 192,897,107,434.37/591,394.80
  6. Step 6: Final answer
    x = 326,173.15

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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.