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Finding the Fourth Proportional to 717,662.64, 1,075,115.28 and 401,160

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Solution

The fourth proportional to 717,662.64, 1,075,115.28 and 401,160 is: 600,969.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,662.64 : 1,075,115.28 = 401,160 : x
  2. Step 2: Convert to fraction form
    717,662.64/1,075,115.28 = 401,160/x
  3. Step 3: Cross multiply
    717,662.64x = 1,075,115.28 × 401,160
  4. Step 4: Simplify right side
    717,662.64x = 431,293,245,724.80
  5. Step 5: Solve for x
    x = 431,293,245,724.80/717,662.64
  6. Step 6: Final answer
    x = 600,969.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.