Home / 1,681,066.25-2,319,863.61-917,119.81

Finding the Fourth Proportional to 1,681,066.25, 2,319,863.61 and 917,119.81

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Solution

The fourth proportional to 1,681,066.25, 2,319,863.61 and 917,119.81 is: 1,265,621.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,066.25 : 2,319,863.61 = 917,119.81 : x
  2. Step 2: Convert to fraction form
    1,681,066.25/2,319,863.61 = 917,119.81/x
  3. Step 3: Cross multiply
    1,681,066.25x = 2,319,863.61 × 917,119.81
  4. Step 4: Simplify right side
    1,681,066.25x = 2,127,592,867,429.45
  5. Step 5: Solve for x
    x = 2,127,592,867,429.45/1,681,066.25
  6. Step 6: Final answer
    x = 1,265,621.07

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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.