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Finding the Fourth Proportional to 1,414.49, 2,121.40 and 592.32

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Solution

The fourth proportional to 1,414.49, 2,121.40 and 592.32 is: 888.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,414.49 : 2,121.40 = 592.32 : x
  2. Step 2: Convert to fraction form
    1,414.49/2,121.40 = 592.32/x
  3. Step 3: Cross multiply
    1,414.49x = 2,121.40 × 592.32
  4. Step 4: Simplify right side
    1,414.49x = 1,256,547.65
  5. Step 5: Solve for x
    x = 1,256,547.65/1,414.49
  6. Step 6: Final answer
    x = 888.34

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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.