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Finding the Fourth Proportional to 1,229,763, 1,697,072.94 and 693,219

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Solution

The fourth proportional to 1,229,763, 1,697,072.94 and 693,219 is: 956,642.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,763 : 1,697,072.94 = 693,219 : x
  2. Step 2: Convert to fraction form
    1,229,763/1,697,072.94 = 693,219/x
  3. Step 3: Cross multiply
    1,229,763x = 1,697,072.94 × 693,219
  4. Step 4: Simplify right side
    1,229,763x = 1,176,443,206,393.86
  5. Step 5: Solve for x
    x = 1,176,443,206,393.86/1,229,763
  6. Step 6: Final answer
    x = 956,642.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.