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Finding the Fourth Proportional to 926.24, 1,388.95 and 463.93

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Solution

The fourth proportional to 926.24, 1,388.95 and 463.93 is: 695.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    926.24 : 1,388.95 = 463.93 : x
  2. Step 2: Convert to fraction form
    926.24/1,388.95 = 463.93/x
  3. Step 3: Cross multiply
    926.24x = 1,388.95 × 463.93
  4. Step 4: Simplify right side
    926.24x = 644,370.94
  5. Step 5: Solve for x
    x = 644,370.94/926.24
  6. Step 6: Final answer
    x = 695.69

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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.