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Finding the Fourth Proportional to 665,267,445.20, 997,901,167.80 and 665,267,445.20

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Solution

The fourth proportional to 665,267,445.20, 997,901,167.80 and 665,267,445.20 is: 997,901,167.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,267,445.20 : 997,901,167.80 = 665,267,445.20 : x
  2. Step 2: Convert to fraction form
    665,267,445.20/997,901,167.80 = 665,267,445.20/x
  3. Step 3: Cross multiply
    665,267,445.20x = 997,901,167.80 × 665,267,445.20
  4. Step 4: Simplify right side
    665,267,445.20x = 663,871,160,464,402,560
  5. Step 5: Solve for x
    x = 663,871,160,464,402,560/665,267,445.20
  6. Step 6: Final answer
    x = 997,901,167.80

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Double scale
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Similar ratio
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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.