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Finding the Fourth Proportional to 219,218.80, 328,828.20 and 183,789.40

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Solution

The fourth proportional to 219,218.80, 328,828.20 and 183,789.40 is: 275,684.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,218.80 : 328,828.20 = 183,789.40 : x
  2. Step 2: Convert to fraction form
    219,218.80/328,828.20 = 183,789.40/x
  3. Step 3: Cross multiply
    219,218.80x = 328,828.20 × 183,789.40
  4. Step 4: Simplify right side
    219,218.80x = 60,435,137,581.08
  5. Step 5: Solve for x
    x = 60,435,137,581.08/219,218.80
  6. Step 6: Final answer
    x = 275,684.10

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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.