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Finding the Fourth Proportional to 1,841,789.90, 2,763,059.88 and 776,835.92

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Solution

The fourth proportional to 1,841,789.90, 2,763,059.88 and 776,835.92 is: 1,165,412.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,841,789.90 : 2,763,059.88 = 776,835.92 : x
  2. Step 2: Convert to fraction form
    1,841,789.90/2,763,059.88 = 776,835.92/x
  3. Step 3: Cross multiply
    1,841,789.90x = 2,763,059.88 × 776,835.92
  4. Step 4: Simplify right side
    1,841,789.90x = 2,146,444,163,894.89
  5. Step 5: Solve for x
    x = 2,146,444,163,894.89/1,841,789.90
  6. Step 6: Final answer
    x = 1,165,412.06

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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.