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Finding the Fourth Proportional to 351,326.76, 525,956.58 and 217,778.28

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Solution

The fourth proportional to 351,326.76, 525,956.58 and 217,778.28 is: 326,026.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,326.76 : 525,956.58 = 217,778.28 : x
  2. Step 2: Convert to fraction form
    351,326.76/525,956.58 = 217,778.28/x
  3. Step 3: Cross multiply
    351,326.76x = 525,956.58 × 217,778.28
  4. Step 4: Simplify right side
    351,326.76x = 114,541,919,347.08
  5. Step 5: Solve for x
    x = 114,541,919,347.08/351,326.76
  6. Step 6: Final answer
    x = 326,026.74

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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.