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Finding the Fourth Proportional to 663,552,433.80, 995,328,650.70 and 623,208,472.20

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Solution

The fourth proportional to 663,552,433.80, 995,328,650.70 and 623,208,472.20 is: 934,812,708.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,552,433.80 : 995,328,650.70 = 623,208,472.20 : x
  2. Step 2: Convert to fraction form
    663,552,433.80/995,328,650.70 = 623,208,472.20/x
  3. Step 3: Cross multiply
    663,552,433.80x = 995,328,650.70 × 623,208,472.20
  4. Step 4: Simplify right side
    663,552,433.80x = 620,297,247,739,634,560
  5. Step 5: Solve for x
    x = 620,297,247,739,634,560/663,552,433.80
  6. Step 6: Final answer
    x = 934,812,708.30

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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.