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Finding the Fourth Proportional to 1,133.44, 1,564.11 and 714.02

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Solution

The fourth proportional to 1,133.44, 1,564.11 and 714.02 is: 985.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133.44 : 1,564.11 = 714.02 : x
  2. Step 2: Convert to fraction form
    1,133.44/1,564.11 = 714.02/x
  3. Step 3: Cross multiply
    1,133.44x = 1,564.11 × 714.02
  4. Step 4: Simplify right side
    1,133.44x = 1,116,798.00
  5. Step 5: Solve for x
    x = 1,116,798.00/1,133.44
  6. Step 6: Final answer
    x = 985.31

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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.