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Finding the Fourth Proportional to 5,280,399,325,628.90, 7,920,598,988,443.40 and 5,280,399,325,628.90

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Solution

The fourth proportional to 5,280,399,325,628.90, 7,920,598,988,443.40 and 5,280,399,325,628.90 is: 7,920,598,988,443.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280,399,325,628.90 : 7,920,598,988,443.40 = 5,280,399,325,628.90 : x
  2. Step 2: Convert to fraction form
    5,280,399,325,628.90/7,920,598,988,443.40 = 5,280,399,325,628.90/x
  3. Step 3: Cross multiply
    5,280,399,325,628.90x = 7,920,598,988,443.40 × 5,280,399,325,628.90
  4. Step 4: Simplify right side
    5,280,399,325,628.90x = 41,823,925,557,153,485,662,715,904
  5. Step 5: Solve for x
    x = 41,823,925,557,153,485,662,715,904/5,280,399,325,628.90
  6. Step 6: Final answer
    x = 7,920,598,988,443.40

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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.