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Finding the Fourth Proportional to 1,000,584.55, 1,379,873.77 and 926,275.15

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Solution

The fourth proportional to 1,000,584.55, 1,379,873.77 and 926,275.15 is: 1,277,396.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,584.55 : 1,379,873.77 = 926,275.15 : x
  2. Step 2: Convert to fraction form
    1,000,584.55/1,379,873.77 = 926,275.15/x
  3. Step 3: Cross multiply
    1,000,584.55x = 1,379,873.77 × 926,275.15
  4. Step 4: Simplify right side
    1,000,584.55x = 1,278,142,783,287.82
  5. Step 5: Solve for x
    x = 1,278,142,783,287.82/1,000,584.55
  6. Step 6: Final answer
    x = 1,277,396.08

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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.