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Finding the Fourth Proportional to 339,562.32, 509,557.32 and 189,900.60

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Solution

The fourth proportional to 339,562.32, 509,557.32 and 189,900.60 is: 284,970.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,562.32 : 509,557.32 = 189,900.60 : x
  2. Step 2: Convert to fraction form
    339,562.32/509,557.32 = 189,900.60/x
  3. Step 3: Cross multiply
    339,562.32x = 509,557.32 × 189,900.60
  4. Step 4: Simplify right side
    339,562.32x = 96,765,240,802.39
  5. Step 5: Solve for x
    x = 96,765,240,802.39/339,562.32
  6. Step 6: Final answer
    x = 284,970.49

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1.5x scale

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.