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Finding the Fourth Proportional to 308,911.60, 463,367.40 and 242,556.40

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Solution

The fourth proportional to 308,911.60, 463,367.40 and 242,556.40 is: 363,834.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,911.60 : 463,367.40 = 242,556.40 : x
  2. Step 2: Convert to fraction form
    308,911.60/463,367.40 = 242,556.40/x
  3. Step 3: Cross multiply
    308,911.60x = 463,367.40 × 242,556.40
  4. Step 4: Simplify right side
    308,911.60x = 112,392,728,421.36
  5. Step 5: Solve for x
    x = 112,392,728,421.36/308,911.60
  6. Step 6: Final answer
    x = 363,834.60

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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.