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Finding the Fourth Proportional to 1,341.69, 1,851.56 and 752.19

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Solution

The fourth proportional to 1,341.69, 1,851.56 and 752.19 is: 1,038.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.69 : 1,851.56 = 752.19 : x
  2. Step 2: Convert to fraction form
    1,341.69/1,851.56 = 752.19/x
  3. Step 3: Cross multiply
    1,341.69x = 1,851.56 × 752.19
  4. Step 4: Simplify right side
    1,341.69x = 1,392,721.16
  5. Step 5: Solve for x
    x = 1,392,721.16/1,341.69
  6. Step 6: Final answer
    x = 1,038.03

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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.