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Finding the Fourth Proportional to 1,715.34, 2,573.03 and 416.81

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Solution

The fourth proportional to 1,715.34, 2,573.03 and 416.81 is: 625.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.34 : 2,573.03 = 416.81 : x
  2. Step 2: Convert to fraction form
    1,715.34/2,573.03 = 416.81/x
  3. Step 3: Cross multiply
    1,715.34x = 2,573.03 × 416.81
  4. Step 4: Simplify right side
    1,715.34x = 1,072,472.11
  5. Step 5: Solve for x
    x = 1,072,472.11/1,715.34
  6. Step 6: Final answer
    x = 625.22

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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.