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Finding the Fourth Proportional to 663,828,986.70, 995,743,480.05 and 663,828,986.70

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Solution

The fourth proportional to 663,828,986.70, 995,743,480.05 and 663,828,986.70 is: 995,743,480.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,828,986.70 : 995,743,480.05 = 663,828,986.70 : x
  2. Step 2: Convert to fraction form
    663,828,986.70/995,743,480.05 = 663,828,986.70/x
  3. Step 3: Cross multiply
    663,828,986.70x = 995,743,480.05 × 663,828,986.70
  4. Step 4: Simplify right side
    663,828,986.70x = 661,003,385,374,723,200
  5. Step 5: Solve for x
    x = 661,003,385,374,723,200/663,828,986.70
  6. Step 6: Final answer
    x = 995,743,480.05

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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.