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Finding the Fourth Proportional to 1,594.54, 2,391.90 and 554.10

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Solution

The fourth proportional to 1,594.54, 2,391.90 and 554.10 is: 831.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,594.54 : 2,391.90 = 554.10 : x
  2. Step 2: Convert to fraction form
    1,594.54/2,391.90 = 554.10/x
  3. Step 3: Cross multiply
    1,594.54x = 2,391.90 × 554.10
  4. Step 4: Simplify right side
    1,594.54x = 1,325,337.06
  5. Step 5: Solve for x
    x = 1,325,337.06/1,594.54
  6. Step 6: Final answer
    x = 831.17

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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.