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Finding the Fourth Proportional to 416,679.36, 575,017.68 and 225,692.16

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Solution

The fourth proportional to 416,679.36, 575,017.68 and 225,692.16 is: 311,455.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,679.36 : 575,017.68 = 225,692.16 : x
  2. Step 2: Convert to fraction form
    416,679.36/575,017.68 = 225,692.16/x
  3. Step 3: Cross multiply
    416,679.36x = 575,017.68 × 225,692.16
  4. Step 4: Simplify right side
    416,679.36x = 129,776,982,237.39
  5. Step 5: Solve for x
    x = 129,776,982,237.39/416,679.36
  6. Step 6: Final answer
    x = 311,455.27

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1.5x scale

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.