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Finding the Fourth Proportional to 744,468, 1,116,805.44 and 238,910.40

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Solution

The fourth proportional to 744,468, 1,116,805.44 and 238,910.40 is: 358,398.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,468 : 1,116,805.44 = 238,910.40 : x
  2. Step 2: Convert to fraction form
    744,468/1,116,805.44 = 238,910.40/x
  3. Step 3: Cross multiply
    744,468x = 1,116,805.44 × 238,910.40
  4. Step 4: Simplify right side
    744,468x = 266,816,434,392.58
  5. Step 5: Solve for x
    x = 266,816,434,392.58/744,468
  6. Step 6: Final answer
    x = 358,398.80

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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.