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Finding the Fourth Proportional to 308,970.80, 463,456.20 and 151,506.80

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Solution

The fourth proportional to 308,970.80, 463,456.20 and 151,506.80 is: 227,260.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,970.80 : 463,456.20 = 151,506.80 : x
  2. Step 2: Convert to fraction form
    308,970.80/463,456.20 = 151,506.80/x
  3. Step 3: Cross multiply
    308,970.80x = 463,456.20 × 151,506.80
  4. Step 4: Simplify right side
    308,970.80x = 70,216,765,802.16
  5. Step 5: Solve for x
    x = 70,216,765,802.16/308,970.80
  6. Step 6: Final answer
    x = 227,260.20

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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.