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Finding the Fourth Proportional to 341,926.40, 513,310.80 and 215,566.40

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Solution

The fourth proportional to 341,926.40, 513,310.80 and 215,566.40 is: 323,615.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,926.40 : 513,310.80 = 215,566.40 : x
  2. Step 2: Convert to fraction form
    341,926.40/513,310.80 = 215,566.40/x
  3. Step 3: Cross multiply
    341,926.40x = 513,310.80 × 215,566.40
  4. Step 4: Simplify right side
    341,926.40x = 110,652,561,237.12
  5. Step 5: Solve for x
    x = 110,652,561,237.12/341,926.40
  6. Step 6: Final answer
    x = 323,615.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.