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Finding the Fourth Proportional to 908,793.90, 1,363,190.85 and 768,825.90

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Solution

The fourth proportional to 908,793.90, 1,363,190.85 and 768,825.90 is: 1,153,238.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,793.90 : 1,363,190.85 = 768,825.90 : x
  2. Step 2: Convert to fraction form
    908,793.90/1,363,190.85 = 768,825.90/x
  3. Step 3: Cross multiply
    908,793.90x = 1,363,190.85 × 768,825.90
  4. Step 4: Simplify right side
    908,793.90x = 1,048,056,432,123.02
  5. Step 5: Solve for x
    x = 1,048,056,432,123.02/908,793.90
  6. Step 6: Final answer
    x = 1,153,238.85

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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.