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Finding the Fourth Proportional to 1,353.71, 2,030.76 and 476.33

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Solution

The fourth proportional to 1,353.71, 2,030.76 and 476.33 is: 714.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.71 : 2,030.76 = 476.33 : x
  2. Step 2: Convert to fraction form
    1,353.71/2,030.76 = 476.33/x
  3. Step 3: Cross multiply
    1,353.71x = 2,030.76 × 476.33
  4. Step 4: Simplify right side
    1,353.71x = 967,307.59
  5. Step 5: Solve for x
    x = 967,307.59/1,353.71
  6. Step 6: Final answer
    x = 714.56

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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.