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Finding the Fourth Proportional to 325,930.74, 489,644.64 and 230,088.30

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Solution

The fourth proportional to 325,930.74, 489,644.64 and 230,088.30 is: 345,660.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,930.74 : 489,644.64 = 230,088.30 : x
  2. Step 2: Convert to fraction form
    325,930.74/489,644.64 = 230,088.30/x
  3. Step 3: Cross multiply
    325,930.74x = 489,644.64 × 230,088.30
  4. Step 4: Simplify right side
    325,930.74x = 112,661,502,821.71
  5. Step 5: Solve for x
    x = 112,661,502,821.71/325,930.74
  6. Step 6: Final answer
    x = 345,660.87

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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.