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Finding the Fourth Proportional to 1,089.94, 1,504.13 and 592.58

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Solution

The fourth proportional to 1,089.94, 1,504.13 and 592.58 is: 817.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089.94 : 1,504.13 = 592.58 : x
  2. Step 2: Convert to fraction form
    1,089.94/1,504.13 = 592.58/x
  3. Step 3: Cross multiply
    1,089.94x = 1,504.13 × 592.58
  4. Step 4: Simplify right side
    1,089.94x = 891,318.15
  5. Step 5: Solve for x
    x = 891,318.15/1,089.94
  6. Step 6: Final answer
    x = 817.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.