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Finding the Fourth Proportional to 1,867,009.80, 2,794,293.90 and 1,717,710.60

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Solution

The fourth proportional to 1,867,009.80, 2,794,293.90 and 1,717,710.60 is: 2,570,842.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867,009.80 : 2,794,293.90 = 1,717,710.60 : x
  2. Step 2: Convert to fraction form
    1,867,009.80/2,794,293.90 = 1,717,710.60/x
  3. Step 3: Cross multiply
    1,867,009.80x = 2,794,293.90 × 1,717,710.60
  4. Step 4: Simplify right side
    1,867,009.80x = 4,799,788,251,545.34
  5. Step 5: Solve for x
    x = 4,799,788,251,545.34/1,867,009.80
  6. Step 6: Final answer
    x = 2,570,842.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.