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Finding the Fourth Proportional to 694,528, 958,571.49 and 408,048.01

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Solution

The fourth proportional to 694,528, 958,571.49 and 408,048.01 is: 563,178.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,528 : 958,571.49 = 408,048.01 : x
  2. Step 2: Convert to fraction form
    694,528/958,571.49 = 408,048.01/x
  3. Step 3: Cross multiply
    694,528x = 958,571.49 × 408,048.01
  4. Step 4: Simplify right side
    694,528x = 391,143,188,937.24
  5. Step 5: Solve for x
    x = 391,143,188,937.24/694,528
  6. Step 6: Final answer
    x = 563,178.43

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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.