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Finding the Fourth Proportional to 1,191,762.06, 1,644,664.10 and 647,934.44

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Solution

The fourth proportional to 1,191,762.06, 1,644,664.10 and 647,934.44 is: 894,167.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,762.06 : 1,644,664.10 = 647,934.44 : x
  2. Step 2: Convert to fraction form
    1,191,762.06/1,644,664.10 = 647,934.44/x
  3. Step 3: Cross multiply
    1,191,762.06x = 1,644,664.10 × 647,934.44
  4. Step 4: Simplify right side
    1,191,762.06x = 1,065,634,510,409.85
  5. Step 5: Solve for x
    x = 1,065,634,510,409.85/1,191,762.06
  6. Step 6: Final answer
    x = 894,167.17

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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.