Home / 1,643,100.54-2,267,478.54-917,948.45

Finding the Fourth Proportional to 1,643,100.54, 2,267,478.54 and 917,948.45

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Solution

The fourth proportional to 1,643,100.54, 2,267,478.54 and 917,948.45 is: 1,266,768.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,100.54 : 2,267,478.54 = 917,948.45 : x
  2. Step 2: Convert to fraction form
    1,643,100.54/2,267,478.54 = 917,948.45/x
  3. Step 3: Cross multiply
    1,643,100.54x = 2,267,478.54 × 917,948.45
  4. Step 4: Simplify right side
    1,643,100.54x = 2,081,428,399,863.87
  5. Step 5: Solve for x
    x = 2,081,428,399,863.87/1,643,100.54
  6. Step 6: Final answer
    x = 1,266,768.74

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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.