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Finding the Fourth Proportional to 1,176.54, 1,763.59 and 559.32

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Solution

The fourth proportional to 1,176.54, 1,763.59 and 559.32 is: 838.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.54 : 1,763.59 = 559.32 : x
  2. Step 2: Convert to fraction form
    1,176.54/1,763.59 = 559.32/x
  3. Step 3: Cross multiply
    1,176.54x = 1,763.59 × 559.32
  4. Step 4: Simplify right side
    1,176.54x = 986,411.16
  5. Step 5: Solve for x
    x = 986,411.16/1,176.54
  6. Step 6: Final answer
    x = 838.40

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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.