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Finding the Fourth Proportional to 308,511.60, 462,767.40 and 168,543.60

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Solution

The fourth proportional to 308,511.60, 462,767.40 and 168,543.60 is: 252,815.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,511.60 : 462,767.40 = 168,543.60 : x
  2. Step 2: Convert to fraction form
    308,511.60/462,767.40 = 168,543.60/x
  3. Step 3: Cross multiply
    308,511.60x = 462,767.40 × 168,543.60
  4. Step 4: Simplify right side
    308,511.60x = 77,996,483,558.64
  5. Step 5: Solve for x
    x = 77,996,483,558.64/308,511.60
  6. Step 6: Final answer
    x = 252,815.40

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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.