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Finding the Fourth Proportional to 647,103.70, 970,655.55 and 532,942.30

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Solution

The fourth proportional to 647,103.70, 970,655.55 and 532,942.30 is: 799,413.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,103.70 : 970,655.55 = 532,942.30 : x
  2. Step 2: Convert to fraction form
    647,103.70/970,655.55 = 532,942.30/x
  3. Step 3: Cross multiply
    647,103.70x = 970,655.55 × 532,942.30
  4. Step 4: Simplify right side
    647,103.70x = 517,303,401,324.77
  5. Step 5: Solve for x
    x = 517,303,401,324.77/647,103.70
  6. Step 6: Final answer
    x = 799,413.45

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Double scale
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Similar ratio
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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.