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Finding the Fourth Proportional to 309,339.96, 426,874.86 and 175,204.92

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Solution

The fourth proportional to 309,339.96, 426,874.86 and 175,204.92 is: 241,774.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,339.96 : 426,874.86 = 175,204.92 : x
  2. Step 2: Convert to fraction form
    309,339.96/426,874.86 = 175,204.92/x
  3. Step 3: Cross multiply
    309,339.96x = 426,874.86 × 175,204.92
  4. Step 4: Simplify right side
    309,339.96x = 74,790,575,696.31
  5. Step 5: Solve for x
    x = 74,790,575,696.31/309,339.96
  6. Step 6: Final answer
    x = 241,774.70

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1.5x scale

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.