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Finding the Fourth Proportional to 219,217.80, 328,826.70 and 183,788.40

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Solution

The fourth proportional to 219,217.80, 328,826.70 and 183,788.40 is: 275,682.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,217.80 : 328,826.70 = 183,788.40 : x
  2. Step 2: Convert to fraction form
    219,217.80/328,826.70 = 183,788.40/x
  3. Step 3: Cross multiply
    219,217.80x = 328,826.70 × 183,788.40
  4. Step 4: Simplify right side
    219,217.80x = 60,434,533,070.28
  5. Step 5: Solve for x
    x = 60,434,533,070.28/219,217.80
  6. Step 6: Final answer
    x = 275,682.60

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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.