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Finding the Fourth Proportional to 5,252,019,908.40, 7,878,029,862.60 and 5,252,019,908.40

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Solution

The fourth proportional to 5,252,019,908.40, 7,878,029,862.60 and 5,252,019,908.40 is: 7,878,029,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,252,019,908.40 : 7,878,029,862.60 = 5,252,019,908.40 : x
  2. Step 2: Convert to fraction form
    5,252,019,908.40/7,878,029,862.60 = 5,252,019,908.40/x
  3. Step 3: Cross multiply
    5,252,019,908.40x = 7,878,029,862.60 × 5,252,019,908.40
  4. Step 4: Simplify right side
    5,252,019,908.40x = 41,375,569,677,344,915,456
  5. Step 5: Solve for x
    x = 41,375,569,677,344,915,456/5,252,019,908.40
  6. Step 6: Final answer
    x = 7,878,029,862.60

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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.