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Finding the Fourth Proportional to 338,514.40, 467,148.90 and 187,611.40

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Solution

The fourth proportional to 338,514.40, 467,148.90 and 187,611.40 is: 258,903.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,514.40 : 467,148.90 = 187,611.40 : x
  2. Step 2: Convert to fraction form
    338,514.40/467,148.90 = 187,611.40/x
  3. Step 3: Cross multiply
    338,514.40x = 467,148.90 × 187,611.40
  4. Step 4: Simplify right side
    338,514.40x = 87,642,459,137.46
  5. Step 5: Solve for x
    x = 87,642,459,137.46/338,514.40
  6. Step 6: Final answer
    x = 258,903.19

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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.