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Finding the Fourth Proportional to 1,301.14, 1,792.56 and 907.48

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Solution

The fourth proportional to 1,301.14, 1,792.56 and 907.48 is: 1,250.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301.14 : 1,792.56 = 907.48 : x
  2. Step 2: Convert to fraction form
    1,301.14/1,792.56 = 907.48/x
  3. Step 3: Cross multiply
    1,301.14x = 1,792.56 × 907.48
  4. Step 4: Simplify right side
    1,301.14x = 1,626,712.35
  5. Step 5: Solve for x
    x = 1,626,712.35/1,301.14
  6. Step 6: Final answer
    x = 1,250.22

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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.