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Finding the Fourth Proportional to 364,843.14, 503,445.31 and 211,851.51

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Solution

The fourth proportional to 364,843.14, 503,445.31 and 211,851.51 is: 292,332.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,843.14 : 503,445.31 = 211,851.51 : x
  2. Step 2: Convert to fraction form
    364,843.14/503,445.31 = 211,851.51/x
  3. Step 3: Cross multiply
    364,843.14x = 503,445.31 × 211,851.51
  4. Step 4: Simplify right side
    364,843.14x = 106,655,649,125.92
  5. Step 5: Solve for x
    x = 106,655,649,125.92/364,843.14
  6. Step 6: Final answer
    x = 292,332.89

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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.