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Finding the Fourth Proportional to 534,688.50, 737,870.29 and 319,837.62

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Solution

The fourth proportional to 534,688.50, 737,870.29 and 319,837.62 is: 441,376.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,688.50 : 737,870.29 = 319,837.62 : x
  2. Step 2: Convert to fraction form
    534,688.50/737,870.29 = 319,837.62/x
  3. Step 3: Cross multiply
    534,688.50x = 737,870.29 × 319,837.62
  4. Step 4: Simplify right side
    534,688.50x = 235,998,677,422.31
  5. Step 5: Solve for x
    x = 235,998,677,422.31/534,688.50
  6. Step 6: Final answer
    x = 441,376.01

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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.