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Finding the Fourth Proportional to 1,919,295,280.60, 2,874,638,248.80 and 1,919,295,280.60

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Solution

The fourth proportional to 1,919,295,280.60, 2,874,638,248.80 and 1,919,295,280.60 is: 2,874,638,248.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,295,280.60 : 2,874,638,248.80 = 1,919,295,280.60 : x
  2. Step 2: Convert to fraction form
    1,919,295,280.60/2,874,638,248.80 = 1,919,295,280.60/x
  3. Step 3: Cross multiply
    1,919,295,280.60x = 2,874,638,248.80 × 1,919,295,280.60
  4. Step 4: Simplify right side
    1,919,295,280.60x = 5,517,279,624,354,088,960
  5. Step 5: Solve for x
    x = 5,517,279,624,354,088,960/1,919,295,280.60
  6. Step 6: Final answer
    x = 2,874,638,248.80

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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.