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Finding the Fourth Proportional to 599,732.40, 899,598.60 and 319,796.40

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Solution

The fourth proportional to 599,732.40, 899,598.60 and 319,796.40 is: 479,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,732.40 : 899,598.60 = 319,796.40 : x
  2. Step 2: Convert to fraction form
    599,732.40/899,598.60 = 319,796.40/x
  3. Step 3: Cross multiply
    599,732.40x = 899,598.60 × 319,796.40
  4. Step 4: Simplify right side
    599,732.40x = 287,688,393,725.04
  5. Step 5: Solve for x
    x = 287,688,393,725.04/599,732.40
  6. Step 6: Final answer
    x = 479,694.60

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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.