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Finding the Fourth Proportional to 1,976,126.88, 2,727,056.88 and 1,070,708.88

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Solution

The fourth proportional to 1,976,126.88, 2,727,056.88 and 1,070,708.88 is: 1,477,579.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976,126.88 : 2,727,056.88 = 1,070,708.88 : x
  2. Step 2: Convert to fraction form
    1,976,126.88/2,727,056.88 = 1,070,708.88/x
  3. Step 3: Cross multiply
    1,976,126.88x = 2,727,056.88 × 1,070,708.88
  4. Step 4: Simplify right side
    1,976,126.88x = 2,919,884,017,681.09
  5. Step 5: Solve for x
    x = 2,919,884,017,681.09/1,976,126.88
  6. Step 6: Final answer
    x = 1,477,579.22

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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.