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Finding the Fourth Proportional to 700,036.48, 966,053.28 and 394,118.08

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Solution

The fourth proportional to 700,036.48, 966,053.28 and 394,118.08 is: 543,884.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,036.48 : 966,053.28 = 394,118.08 : x
  2. Step 2: Convert to fraction form
    700,036.48/966,053.28 = 394,118.08/x
  3. Step 3: Cross multiply
    700,036.48x = 966,053.28 × 394,118.08
  4. Step 4: Simplify right side
    700,036.48x = 380,739,063,891.30
  5. Step 5: Solve for x
    x = 380,739,063,891.30/700,036.48
  6. Step 6: Final answer
    x = 543,884.60

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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.