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Finding the Fourth Proportional to 557,443.22, 836,289.43 and 178,386.71

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Solution

The fourth proportional to 557,443.22, 836,289.43 and 178,386.71 is: 267,619.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,443.22 : 836,289.43 = 178,386.71 : x
  2. Step 2: Convert to fraction form
    557,443.22/836,289.43 = 178,386.71/x
  3. Step 3: Cross multiply
    557,443.22x = 836,289.43 × 178,386.71
  4. Step 4: Simplify right side
    557,443.22x = 149,182,915,398.06
  5. Step 5: Solve for x
    x = 149,182,915,398.06/557,443.22
  6. Step 6: Final answer
    x = 267,619.93

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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.