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Finding the Fourth Proportional to 664,280,794.45, 996,421,191.68 and 664,280,794.45

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Solution

The fourth proportional to 664,280,794.45, 996,421,191.68 and 664,280,794.45 is: 996,421,191.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,280,794.45 : 996,421,191.68 = 664,280,794.45 : x
  2. Step 2: Convert to fraction form
    664,280,794.45/996,421,191.68 = 664,280,794.45/x
  3. Step 3: Cross multiply
    664,280,794.45x = 996,421,191.68 × 664,280,794.45
  4. Step 4: Simplify right side
    664,280,794.45x = 661,903,460,816,006,144
  5. Step 5: Solve for x
    x = 661,903,460,816,006,144/664,280,794.45
  6. Step 6: Final answer
    x = 996,421,191.68

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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.