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Finding the Fourth Proportional to 1,059.12, 1,461.46 and 586.96

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Solution

The fourth proportional to 1,059.12, 1,461.46 and 586.96 is: 809.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,059.12 : 1,461.46 = 586.96 : x
  2. Step 2: Convert to fraction form
    1,059.12/1,461.46 = 586.96/x
  3. Step 3: Cross multiply
    1,059.12x = 1,461.46 × 586.96
  4. Step 4: Simplify right side
    1,059.12x = 857,818.56
  5. Step 5: Solve for x
    x = 857,818.56/1,059.12
  6. Step 6: Final answer
    x = 809.94

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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.