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Finding the Fourth Proportional to 411,844.40, 617,075.40 and 352,401.20

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Solution

The fourth proportional to 411,844.40, 617,075.40 and 352,401.20 is: 528,010.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,844.40 : 617,075.40 = 352,401.20 : x
  2. Step 2: Convert to fraction form
    411,844.40/617,075.40 = 352,401.20/x
  3. Step 3: Cross multiply
    411,844.40x = 617,075.40 × 352,401.20
  4. Step 4: Simplify right side
    411,844.40x = 217,458,111,450.48
  5. Step 5: Solve for x
    x = 217,458,111,450.48/411,844.40
  6. Step 6: Final answer
    x = 528,010.36

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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.