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Finding the Fourth Proportional to 1,560.15, 2,340.38 and 464.32

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Solution

The fourth proportional to 1,560.15, 2,340.38 and 464.32 is: 696.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.15 : 2,340.38 = 464.32 : x
  2. Step 2: Convert to fraction form
    1,560.15/2,340.38 = 464.32/x
  3. Step 3: Cross multiply
    1,560.15x = 2,340.38 × 464.32
  4. Step 4: Simplify right side
    1,560.15x = 1,086,682.92
  5. Step 5: Solve for x
    x = 1,086,682.92/1,560.15
  6. Step 6: Final answer
    x = 696.52

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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.