Home / 1,681,104.64-2,319,829.86-956,128.72

Finding the Fourth Proportional to 1,681,104.64, 2,319,829.86 and 956,128.72

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Solution

The fourth proportional to 1,681,104.64, 2,319,829.86 and 956,128.72 is: 1,319,403.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,104.64 : 2,319,829.86 = 956,128.72 : x
  2. Step 2: Convert to fraction form
    1,681,104.64/2,319,829.86 = 956,128.72/x
  3. Step 3: Cross multiply
    1,681,104.64x = 2,319,829.86 × 956,128.72
  4. Step 4: Simplify right side
    1,681,104.64x = 2,218,055,954,659.58
  5. Step 5: Solve for x
    x = 2,218,055,954,659.58/1,681,104.64
  6. Step 6: Final answer
    x = 1,319,403.86

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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.