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Finding the Fourth Proportional to 561,929.08, 841,872.78 and 324,770.76

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Solution

The fourth proportional to 561,929.08, 841,872.78 and 324,770.76 is: 486,566.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,929.08 : 841,872.78 = 324,770.76 : x
  2. Step 2: Convert to fraction form
    561,929.08/841,872.78 = 324,770.76/x
  3. Step 3: Cross multiply
    561,929.08x = 841,872.78 × 324,770.76
  4. Step 4: Simplify right side
    561,929.08x = 273,415,662,583.91
  5. Step 5: Solve for x
    x = 273,415,662,583.91/561,929.08
  6. Step 6: Final answer
    x = 486,566.14

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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.