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Finding the Fourth Proportional to 269,556.80, 404,335.20 and 217,068.80

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Solution

The fourth proportional to 269,556.80, 404,335.20 and 217,068.80 is: 325,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,556.80 : 404,335.20 = 217,068.80 : x
  2. Step 2: Convert to fraction form
    269,556.80/404,335.20 = 217,068.80/x
  3. Step 3: Cross multiply
    269,556.80x = 404,335.20 × 217,068.80
  4. Step 4: Simplify right side
    269,556.80x = 87,768,556,661.76
  5. Step 5: Solve for x
    x = 87,768,556,661.76/269,556.80
  6. Step 6: Final answer
    x = 325,603.20

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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.