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Finding the Fourth Proportional to 697,937.21, 963,085.33 and 391,944.01

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Solution

The fourth proportional to 697,937.21, 963,085.33 and 391,944.01 is: 540,844.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,937.21 : 963,085.33 = 391,944.01 : x
  2. Step 2: Convert to fraction form
    697,937.21/963,085.33 = 391,944.01/x
  3. Step 3: Cross multiply
    697,937.21x = 963,085.33 × 391,944.01
  4. Step 4: Simplify right side
    697,937.21x = 377,475,524,252.65
  5. Step 5: Solve for x
    x = 377,475,524,252.65/697,937.21
  6. Step 6: Final answer
    x = 540,844.54

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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.