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Finding the Fourth Proportional to 1,114.08, 1,671.54 and 464.76

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Solution

The fourth proportional to 1,114.08, 1,671.54 and 464.76 is: 697.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114.08 : 1,671.54 = 464.76 : x
  2. Step 2: Convert to fraction form
    1,114.08/1,671.54 = 464.76/x
  3. Step 3: Cross multiply
    1,114.08x = 1,671.54 × 464.76
  4. Step 4: Simplify right side
    1,114.08x = 776,864.93
  5. Step 5: Solve for x
    x = 776,864.93/1,114.08
  6. Step 6: Final answer
    x = 697.32

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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.