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Finding the Fourth Proportional to 1,544.05, 2,316.72 and 569.91

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Solution

The fourth proportional to 1,544.05, 2,316.72 and 569.91 is: 855.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544.05 : 2,316.72 = 569.91 : x
  2. Step 2: Convert to fraction form
    1,544.05/2,316.72 = 569.91/x
  3. Step 3: Cross multiply
    1,544.05x = 2,316.72 × 569.91
  4. Step 4: Simplify right side
    1,544.05x = 1,320,321.90
  5. Step 5: Solve for x
    x = 1,320,321.90/1,544.05
  6. Step 6: Final answer
    x = 855.10

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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.