Home / 919,139.47-1,267,521.89-613,228.32

Finding the Fourth Proportional to 919,139.47, 1,267,521.89 and 613,228.32

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Solution

The fourth proportional to 919,139.47, 1,267,521.89 and 613,228.32 is: 845,660.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,139.47 : 1,267,521.89 = 613,228.32 : x
  2. Step 2: Convert to fraction form
    919,139.47/1,267,521.89 = 613,228.32/x
  3. Step 3: Cross multiply
    919,139.47x = 1,267,521.89 × 613,228.32
  4. Step 4: Simplify right side
    919,139.47x = 777,280,316,101.78
  5. Step 5: Solve for x
    x = 777,280,316,101.78/919,139.47
  6. Step 6: Final answer
    x = 845,660.91

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.