Home / 209,560.79-312,819.75-193,948.85

Finding the Fourth Proportional to 209,560.79, 312,819.75 and 193,948.85

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Solution

The fourth proportional to 209,560.79, 312,819.75 and 193,948.85 is: 289,515.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,560.79 : 312,819.75 = 193,948.85 : x
  2. Step 2: Convert to fraction form
    209,560.79/312,819.75 = 193,948.85/x
  3. Step 3: Cross multiply
    209,560.79x = 312,819.75 × 193,948.85
  4. Step 4: Simplify right side
    209,560.79x = 60,671,029,205.69
  5. Step 5: Solve for x
    x = 60,671,029,205.69/209,560.79
  6. Step 6: Final answer
    x = 289,515.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.