Home / 752,126.73-1,127,129.40-415,319.01

Finding the Fourth Proportional to 752,126.73, 1,127,129.40 and 415,319.01

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Solution

The fourth proportional to 752,126.73, 1,127,129.40 and 415,319.01 is: 622,392.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,126.73 : 1,127,129.40 = 415,319.01 : x
  2. Step 2: Convert to fraction form
    752,126.73/1,127,129.40 = 415,319.01/x
  3. Step 3: Cross multiply
    752,126.73x = 1,127,129.40 × 415,319.01
  4. Step 4: Simplify right side
    752,126.73x = 468,118,266,549.89
  5. Step 5: Solve for x
    x = 468,118,266,549.89/752,126.73
  6. Step 6: Final answer
    x = 622,392.81

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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.