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Finding the Fourth Proportional to 664,280,830.95, 996,421,246.43 and 664,280,830.95

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Solution

The fourth proportional to 664,280,830.95, 996,421,246.43 and 664,280,830.95 is: 996,421,246.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,280,830.95 : 996,421,246.43 = 664,280,830.95 : x
  2. Step 2: Convert to fraction form
    664,280,830.95/996,421,246.43 = 664,280,830.95/x
  3. Step 3: Cross multiply
    664,280,830.95x = 996,421,246.43 × 664,280,830.95
  4. Step 4: Simplify right side
    664,280,830.95x = 661,903,533,551,433,728
  5. Step 5: Solve for x
    x = 661,903,533,551,433,728/664,280,830.95
  6. Step 6: Final answer
    x = 996,421,246.43

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Double scale
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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.