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Finding the Fourth Proportional to 665,348.40, 998,022.60 and 665,348.40

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Solution

The fourth proportional to 665,348.40, 998,022.60 and 665,348.40 is: 998,022.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,348.40 : 998,022.60 = 665,348.40 : x
  2. Step 2: Convert to fraction form
    665,348.40/998,022.60 = 665,348.40/x
  3. Step 3: Cross multiply
    665,348.40x = 998,022.60 × 665,348.40
  4. Step 4: Simplify right side
    665,348.40x = 664,032,740,073.84
  5. Step 5: Solve for x
    x = 664,032,740,073.84/665,348.40
  6. Step 6: Final answer
    x = 998,022.60

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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.