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Finding the Fourth Proportional to 697,187.25, 962,118.41 and 395,381.25

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Solution

The fourth proportional to 697,187.25, 962,118.41 and 395,381.25 is: 545,626.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,187.25 : 962,118.41 = 395,381.25 : x
  2. Step 2: Convert to fraction form
    697,187.25/962,118.41 = 395,381.25/x
  3. Step 3: Cross multiply
    697,187.25x = 962,118.41 × 395,381.25
  4. Step 4: Simplify right side
    697,187.25x = 380,403,577,616.91
  5. Step 5: Solve for x
    x = 380,403,577,616.91/697,187.25
  6. Step 6: Final answer
    x = 545,626.13

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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.