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Finding the Fourth Proportional to 1,576.84, 2,365.74 and 710.92

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Solution

The fourth proportional to 1,576.84, 2,365.74 and 710.92 is: 1,066.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.84 : 2,365.74 = 710.92 : x
  2. Step 2: Convert to fraction form
    1,576.84/2,365.74 = 710.92/x
  3. Step 3: Cross multiply
    1,576.84x = 2,365.74 × 710.92
  4. Step 4: Simplify right side
    1,576.84x = 1,681,851.88
  5. Step 5: Solve for x
    x = 1,681,851.88/1,576.84
  6. Step 6: Final answer
    x = 1,066.60

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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.