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Finding the Fourth Proportional to 589.10, 881.85 and 556.70

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Solution

The fourth proportional to 589.10, 881.85 and 556.70 is: 833.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.10 : 881.85 = 556.70 : x
  2. Step 2: Convert to fraction form
    589.10/881.85 = 556.70/x
  3. Step 3: Cross multiply
    589.10x = 881.85 × 556.70
  4. Step 4: Simplify right side
    589.10x = 490,925.90
  5. Step 5: Solve for x
    x = 490,925.90/589.10
  6. Step 6: Final answer
    x = 833.35

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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.