Home / 1,643,007.20-2,267,268.54-917,710.52

Finding the Fourth Proportional to 1,643,007.20, 2,267,268.54 and 917,710.52

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Solution

The fourth proportional to 1,643,007.20, 2,267,268.54 and 917,710.52 is: 1,266,395.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,007.20 : 2,267,268.54 = 917,710.52 : x
  2. Step 2: Convert to fraction form
    1,643,007.20/2,267,268.54 = 917,710.52/x
  3. Step 3: Cross multiply
    1,643,007.20x = 2,267,268.54 × 917,710.52
  4. Step 4: Simplify right side
    1,643,007.20x = 2,080,696,190,823.04
  5. Step 5: Solve for x
    x = 2,080,696,190,823.04/1,643,007.20
  6. Step 6: Final answer
    x = 1,266,395.05

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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.