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Finding the Fourth Proportional to 1,063.76, 1,595.64 and 294.24

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Solution

The fourth proportional to 1,063.76, 1,595.64 and 294.24 is: 441.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,063.76 : 1,595.64 = 294.24 : x
  2. Step 2: Convert to fraction form
    1,063.76/1,595.64 = 294.24/x
  3. Step 3: Cross multiply
    1,063.76x = 1,595.64 × 294.24
  4. Step 4: Simplify right side
    1,063.76x = 469,501.11
  5. Step 5: Solve for x
    x = 469,501.11/1,063.76
  6. Step 6: Final answer
    x = 441.36

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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.