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Finding the Fourth Proportional to 572.32, 858.48 and 565.60

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Solution

The fourth proportional to 572.32, 858.48 and 565.60 is: 848.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.32 : 858.48 = 565.60 : x
  2. Step 2: Convert to fraction form
    572.32/858.48 = 565.60/x
  3. Step 3: Cross multiply
    572.32x = 858.48 × 565.60
  4. Step 4: Simplify right side
    572.32x = 485,556.29
  5. Step 5: Solve for x
    x = 485,556.29/572.32
  6. Step 6: Final answer
    x = 848.40

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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.