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Finding the Fourth Proportional to 1,069.71, 1,476.05 and 597.55

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Solution

The fourth proportional to 1,069.71, 1,476.05 and 597.55 is: 824.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069.71 : 1,476.05 = 597.55 : x
  2. Step 2: Convert to fraction form
    1,069.71/1,476.05 = 597.55/x
  3. Step 3: Cross multiply
    1,069.71x = 1,476.05 × 597.55
  4. Step 4: Simplify right side
    1,069.71x = 882,008.62
  5. Step 5: Solve for x
    x = 882,008.62/1,069.71
  6. Step 6: Final answer
    x = 824.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.