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Finding the Fourth Proportional to 395,713.11, 546,094.13 and 242,835.74

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Solution

The fourth proportional to 395,713.11, 546,094.13 and 242,835.74 is: 335,119.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,713.11 : 546,094.13 = 242,835.74 : x
  2. Step 2: Convert to fraction form
    395,713.11/546,094.13 = 242,835.74/x
  3. Step 3: Cross multiply
    395,713.11x = 546,094.13 × 242,835.74
  4. Step 4: Simplify right side
    395,713.11x = 132,611,172,168.21
  5. Step 5: Solve for x
    x = 132,611,172,168.21/395,713.11
  6. Step 6: Final answer
    x = 335,119.48

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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.