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Finding the Fourth Proportional to 970,091.80, 1,455,793.80 and 543,626.80

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Solution

The fourth proportional to 970,091.80, 1,455,793.80 and 543,626.80 is: 815,807.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,091.80 : 1,455,793.80 = 543,626.80 : x
  2. Step 2: Convert to fraction form
    970,091.80/1,455,793.80 = 543,626.80/x
  3. Step 3: Cross multiply
    970,091.80x = 1,455,793.80 × 543,626.80
  4. Step 4: Simplify right side
    970,091.80x = 791,408,524,953.84
  5. Step 5: Solve for x
    x = 791,408,524,953.84/970,091.80
  6. Step 6: Final answer
    x = 815,807.87

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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.