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Finding the Fourth Proportional to 1,975,440.98, 2,961,799.86 and 777,500.84

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Solution

The fourth proportional to 1,975,440.98, 2,961,799.86 and 777,500.84 is: 1,165,715.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975,440.98 : 2,961,799.86 = 777,500.84 : x
  2. Step 2: Convert to fraction form
    1,975,440.98/2,961,799.86 = 777,500.84/x
  3. Step 3: Cross multiply
    1,975,440.98x = 2,961,799.86 × 777,500.84
  4. Step 4: Simplify right side
    1,975,440.98x = 2,302,801,889,382.01
  5. Step 5: Solve for x
    x = 2,302,801,889,382.01/1,975,440.98
  6. Step 6: Final answer
    x = 1,165,715.36

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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.