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Finding the Fourth Proportional to 1,116,586, 1,540,232.04 and 663,850

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Solution

The fourth proportional to 1,116,586, 1,540,232.04 and 663,850 is: 915,722.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,586 : 1,540,232.04 = 663,850 : x
  2. Step 2: Convert to fraction form
    1,116,586/1,540,232.04 = 663,850/x
  3. Step 3: Cross multiply
    1,116,586x = 1,540,232.04 × 663,850
  4. Step 4: Simplify right side
    1,116,586x = 1,022,483,039,754
  5. Step 5: Solve for x
    x = 1,022,483,039,754/1,116,586
  6. Step 6: Final answer
    x = 915,722.60

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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.