Home / 1,640,261.47-2,263,562.24-915,109.35

Finding the Fourth Proportional to 1,640,261.47, 2,263,562.24 and 915,109.35

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Solution

The fourth proportional to 1,640,261.47, 2,263,562.24 and 915,109.35 is: 1,262,851.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,261.47 : 2,263,562.24 = 915,109.35 : x
  2. Step 2: Convert to fraction form
    1,640,261.47/2,263,562.24 = 915,109.35/x
  3. Step 3: Cross multiply
    1,640,261.47x = 2,263,562.24 × 915,109.35
  4. Step 4: Simplify right side
    1,640,261.47x = 2,071,406,954,237.59
  5. Step 5: Solve for x
    x = 2,071,406,954,237.59/1,640,261.47
  6. Step 6: Final answer
    x = 1,262,851.68

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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.