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Finding the Fourth Proportional to 339,893.08, 469,042.54 and 186,931.13

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Solution

The fourth proportional to 339,893.08, 469,042.54 and 186,931.13 is: 257,959.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,893.08 : 469,042.54 = 186,931.13 : x
  2. Step 2: Convert to fraction form
    339,893.08/469,042.54 = 186,931.13/x
  3. Step 3: Cross multiply
    339,893.08x = 469,042.54 × 186,931.13
  4. Step 4: Simplify right side
    339,893.08x = 87,678,649,207.73
  5. Step 5: Solve for x
    x = 87,678,649,207.73/339,893.08
  6. Step 6: Final answer
    x = 257,959.50

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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.