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Finding the Fourth Proportional to 694,222.34, 958,075.88 and 388,327.34

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Solution

The fourth proportional to 694,222.34, 958,075.88 and 388,327.34 is: 535,919.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,222.34 : 958,075.88 = 388,327.34 : x
  2. Step 2: Convert to fraction form
    694,222.34/958,075.88 = 388,327.34/x
  3. Step 3: Cross multiply
    694,222.34x = 958,075.88 × 388,327.34
  4. Step 4: Simplify right side
    694,222.34x = 372,047,058,452.11
  5. Step 5: Solve for x
    x = 372,047,058,452.11/694,222.34
  6. Step 6: Final answer
    x = 535,919.17

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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.