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Finding the Fourth Proportional to 587,137.16, 810,235.56 and 345,435.30

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Solution

The fourth proportional to 587,137.16, 810,235.56 and 345,435.30 is: 476,692.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,137.16 : 810,235.56 = 345,435.30 : x
  2. Step 2: Convert to fraction form
    587,137.16/810,235.56 = 345,435.30/x
  3. Step 3: Cross multiply
    587,137.16x = 810,235.56 × 345,435.30
  4. Step 4: Simplify right side
    587,137.16x = 279,883,965,034.65
  5. Step 5: Solve for x
    x = 279,883,965,034.65/587,137.16
  6. Step 6: Final answer
    x = 476,692.64

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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.