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Finding the Fourth Proportional to 1,127,126, 1,555,593 and 697,544.48

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Solution

The fourth proportional to 1,127,126, 1,555,593 and 697,544.48 is: 962,709.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,126 : 1,555,593 = 697,544.48 : x
  2. Step 2: Convert to fraction form
    1,127,126/1,555,593 = 697,544.48/x
  3. Step 3: Cross multiply
    1,127,126x = 1,555,593 × 697,544.48
  4. Step 4: Simplify right side
    1,127,126x = 1,085,095,310,276.64
  5. Step 5: Solve for x
    x = 1,085,095,310,276.64/1,127,126
  6. Step 6: Final answer
    x = 962,709.86

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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.