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Finding the Fourth Proportional to 354,805, 489,630.92 and 241,825.12

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Solution

The fourth proportional to 354,805, 489,630.92 and 241,825.12 is: 333,718.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,805 : 489,630.92 = 241,825.12 : x
  2. Step 2: Convert to fraction form
    354,805/489,630.92 = 241,825.12/x
  3. Step 3: Cross multiply
    354,805x = 489,630.92 × 241,825.12
  4. Step 4: Simplify right side
    354,805x = 118,405,055,984.71
  5. Step 5: Solve for x
    x = 118,405,055,984.71/354,805
  6. Step 6: Final answer
    x = 333,718.68

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1.5x scale

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.