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Finding the Fourth Proportional to 350,957.16, 484,319.44 and 189,812.40

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Solution

The fourth proportional to 350,957.16, 484,319.44 and 189,812.40 is: 261,940.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,957.16 : 484,319.44 = 189,812.40 : x
  2. Step 2: Convert to fraction form
    350,957.16/484,319.44 = 189,812.40/x
  3. Step 3: Cross multiply
    350,957.16x = 484,319.44 × 189,812.40
  4. Step 4: Simplify right side
    350,957.16x = 91,929,835,273.06
  5. Step 5: Solve for x
    x = 91,929,835,273.06/350,957.16
  6. Step 6: Final answer
    x = 261,940.33

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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.