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Finding the Fourth Proportional to 308,847.60, 463,228.20 and 98,506.80

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Solution

The fourth proportional to 308,847.60, 463,228.20 and 98,506.80 is: 147,746.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,847.60 : 463,228.20 = 98,506.80 : x
  2. Step 2: Convert to fraction form
    308,847.60/463,228.20 = 98,506.80/x
  3. Step 3: Cross multiply
    308,847.60x = 463,228.20 × 98,506.80
  4. Step 4: Simplify right side
    308,847.60x = 45,631,127,651.76
  5. Step 5: Solve for x
    x = 45,631,127,651.76/308,847.60
  6. Step 6: Final answer
    x = 147,746.42

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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.