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Finding the Fourth Proportional to 1,811,927.61, 2,715,898.28 and 746,388.36

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Solution

The fourth proportional to 1,811,927.61, 2,715,898.28 and 746,388.36 is: 1,118,761.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811,927.61 : 2,715,898.28 = 746,388.36 : x
  2. Step 2: Convert to fraction form
    1,811,927.61/2,715,898.28 = 746,388.36/x
  3. Step 3: Cross multiply
    1,811,927.61x = 2,715,898.28 × 746,388.36
  4. Step 4: Simplify right side
    1,811,927.61x = 2,027,114,859,404.08
  5. Step 5: Solve for x
    x = 2,027,114,859,404.08/1,811,927.61
  6. Step 6: Final answer
    x = 1,118,761.50

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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.