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Finding the Fourth Proportional to 1,035.42, 1,552.41 and 572.70

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Solution

The fourth proportional to 1,035.42, 1,552.41 and 572.70 is: 858.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,035.42 : 1,552.41 = 572.70 : x
  2. Step 2: Convert to fraction form
    1,035.42/1,552.41 = 572.70/x
  3. Step 3: Cross multiply
    1,035.42x = 1,552.41 × 572.70
  4. Step 4: Simplify right side
    1,035.42x = 889,065.21
  5. Step 5: Solve for x
    x = 889,065.21/1,035.42
  6. Step 6: Final answer
    x = 858.65

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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.