Home / 917,793.54-1,376,217.58-411,920.85

Finding the Fourth Proportional to 917,793.54, 1,376,217.58 and 411,920.85

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Solution

The fourth proportional to 917,793.54, 1,376,217.58 and 411,920.85 is: 617,669.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,793.54 : 1,376,217.58 = 411,920.85 : x
  2. Step 2: Convert to fraction form
    917,793.54/1,376,217.58 = 411,920.85/x
  3. Step 3: Cross multiply
    917,793.54x = 1,376,217.58 × 411,920.85
  4. Step 4: Simplify right side
    917,793.54x = 566,892,715,338.54
  5. Step 5: Solve for x
    x = 566,892,715,338.54/917,793.54
  6. Step 6: Final answer
    x = 617,669.11

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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.