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Finding the Fourth Proportional to 395,714.11, 546,095.51 and 242,836.74

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Solution

The fourth proportional to 395,714.11, 546,095.51 and 242,836.74 is: 335,120.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,714.11 : 546,095.51 = 242,836.74 : x
  2. Step 2: Convert to fraction form
    395,714.11/546,095.51 = 242,836.74/x
  3. Step 3: Cross multiply
    395,714.11x = 546,095.51 × 242,836.74
  4. Step 4: Simplify right side
    395,714.11x = 132,612,053,377.04
  5. Step 5: Solve for x
    x = 132,612,053,377.04/395,714.11
  6. Step 6: Final answer
    x = 335,120.86

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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.