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Finding the Fourth Proportional to 1,056.22, 1,585.01 and 569.61

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Solution

The fourth proportional to 1,056.22, 1,585.01 and 569.61 is: 854.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056.22 : 1,585.01 = 569.61 : x
  2. Step 2: Convert to fraction form
    1,056.22/1,585.01 = 569.61/x
  3. Step 3: Cross multiply
    1,056.22x = 1,585.01 × 569.61
  4. Step 4: Simplify right side
    1,056.22x = 902,837.55
  5. Step 5: Solve for x
    x = 902,837.55/1,056.22
  6. Step 6: Final answer
    x = 854.78

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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.