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Finding the Fourth Proportional to 697,898.67, 963,135 and 391,959.24

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Solution

The fourth proportional to 697,898.67, 963,135 and 391,959.24 is: 540,923.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,898.67 : 963,135 = 391,959.24 : x
  2. Step 2: Convert to fraction form
    697,898.67/963,135 = 391,959.24/x
  3. Step 3: Cross multiply
    697,898.67x = 963,135 × 391,959.24
  4. Step 4: Simplify right side
    697,898.67x = 377,509,662,617.40
  5. Step 5: Solve for x
    x = 377,509,662,617.40/697,898.67
  6. Step 6: Final answer
    x = 540,923.32

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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.