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Finding the Fourth Proportional to 1,926,861.54, 2,659,079.07 and 1,088,656.86

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Solution

The fourth proportional to 1,926,861.54, 2,659,079.07 and 1,088,656.86 is: 1,502,352.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926,861.54 : 2,659,079.07 = 1,088,656.86 : x
  2. Step 2: Convert to fraction form
    1,926,861.54/2,659,079.07 = 1,088,656.86/x
  3. Step 3: Cross multiply
    1,926,861.54x = 2,659,079.07 × 1,088,656.86
  4. Step 4: Simplify right side
    1,926,861.54x = 2,894,824,670,837.92
  5. Step 5: Solve for x
    x = 2,894,824,670,837.92/1,926,861.54
  6. Step 6: Final answer
    x = 1,502,352.20

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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.