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Finding the Fourth Proportional to 1,573.10, 2,359.69 and 572.42

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Solution

The fourth proportional to 1,573.10, 2,359.69 and 572.42 is: 858.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,573.10 : 2,359.69 = 572.42 : x
  2. Step 2: Convert to fraction form
    1,573.10/2,359.69 = 572.42/x
  3. Step 3: Cross multiply
    1,573.10x = 2,359.69 × 572.42
  4. Step 4: Simplify right side
    1,573.10x = 1,350,719.09
  5. Step 5: Solve for x
    x = 1,350,719.09/1,573.10
  6. Step 6: Final answer
    x = 858.64

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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.