Home / 1,228,695.72-1,695,607.97-684,865.98

Finding the Fourth Proportional to 1,228,695.72, 1,695,607.97 and 684,865.98

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Solution

The fourth proportional to 1,228,695.72, 1,695,607.97 and 684,865.98 is: 945,119.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,695.72 : 1,695,607.97 = 684,865.98 : x
  2. Step 2: Convert to fraction form
    1,228,695.72/1,695,607.97 = 684,865.98/x
  3. Step 3: Cross multiply
    1,228,695.72x = 1,695,607.97 × 684,865.98
  4. Step 4: Simplify right side
    1,228,695.72x = 1,161,264,210,645.53
  5. Step 5: Solve for x
    x = 1,161,264,210,645.53/1,228,695.72
  6. Step 6: Final answer
    x = 945,119.44

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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.