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Finding the Fourth Proportional to 1,974,795.06, 2,962,044.78 and 712,622.64

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Solution

The fourth proportional to 1,974,795.06, 2,962,044.78 and 712,622.64 is: 1,068,880.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974,795.06 : 2,962,044.78 = 712,622.64 : x
  2. Step 2: Convert to fraction form
    1,974,795.06/2,962,044.78 = 712,622.64/x
  3. Step 3: Cross multiply
    1,974,795.06x = 2,962,044.78 × 712,622.64
  4. Step 4: Simplify right side
    1,974,795.06x = 2,110,820,170,921.82
  5. Step 5: Solve for x
    x = 2,110,820,170,921.82/1,974,795.06
  6. Step 6: Final answer
    x = 1,068,880.62

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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.