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Finding the Fourth Proportional to 308,987.60, 463,135.80 and 175,931.60

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Solution

The fourth proportional to 308,987.60, 463,135.80 and 175,931.60 is: 263,700.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,987.60 : 463,135.80 = 175,931.60 : x
  2. Step 2: Convert to fraction form
    308,987.60/463,135.80 = 175,931.60/x
  3. Step 3: Cross multiply
    308,987.60x = 463,135.80 × 175,931.60
  4. Step 4: Simplify right side
    308,987.60x = 81,480,222,311.28
  5. Step 5: Solve for x
    x = 81,480,222,311.28/308,987.60
  6. Step 6: Final answer
    x = 263,700.62

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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.