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Finding the Fourth Proportional to 1,294,793.58, 1,786,822.78 and 751,253.06

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Solution

The fourth proportional to 1,294,793.58, 1,786,822.78 and 751,253.06 is: 1,036,733.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,793.58 : 1,786,822.78 = 751,253.06 : x
  2. Step 2: Convert to fraction form
    1,294,793.58/1,786,822.78 = 751,253.06/x
  3. Step 3: Cross multiply
    1,294,793.58x = 1,786,822.78 × 751,253.06
  4. Step 4: Simplify right side
    1,294,793.58x = 1,342,356,081,152.71
  5. Step 5: Solve for x
    x = 1,342,356,081,152.71/1,294,793.58
  6. Step 6: Final answer
    x = 1,036,733.66

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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.