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Finding the Fourth Proportional to 531,855.83, 734,124.78 and 327,970.73

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Solution

The fourth proportional to 531,855.83, 734,124.78 and 327,970.73 is: 452,700.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,855.83 : 734,124.78 = 327,970.73 : x
  2. Step 2: Convert to fraction form
    531,855.83/734,124.78 = 327,970.73/x
  3. Step 3: Cross multiply
    531,855.83x = 734,124.78 × 327,970.73
  4. Step 4: Simplify right side
    531,855.83x = 240,771,436,337.07
  5. Step 5: Solve for x
    x = 240,771,436,337.07/531,855.83
  6. Step 6: Final answer
    x = 452,700.57

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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.