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Finding the Fourth Proportional to 6,432,810,842.40, 8,987,568,578.40 and 6,432,810,842.40

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Solution

The fourth proportional to 6,432,810,842.40, 8,987,568,578.40 and 6,432,810,842.40 is: 8,987,568,578.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,432,810,842.40 : 8,987,568,578.40 = 6,432,810,842.40 : x
  2. Step 2: Convert to fraction form
    6,432,810,842.40/8,987,568,578.40 = 6,432,810,842.40/x
  3. Step 3: Cross multiply
    6,432,810,842.40x = 8,987,568,578.40 × 6,432,810,842.40
  4. Step 4: Simplify right side
    6,432,810,842.40x = 57,815,328,597,945,065,472
  5. Step 5: Solve for x
    x = 57,815,328,597,945,065,472/6,432,810,842.40
  6. Step 6: Final answer
    x = 8,987,568,578.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.