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Finding the Fourth Proportional to 271,666.60, 407,499.90 and 171,283.30

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Solution

The fourth proportional to 271,666.60, 407,499.90 and 171,283.30 is: 256,924.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,666.60 : 407,499.90 = 171,283.30 : x
  2. Step 2: Convert to fraction form
    271,666.60/407,499.90 = 171,283.30/x
  3. Step 3: Cross multiply
    271,666.60x = 407,499.90 × 171,283.30
  4. Step 4: Simplify right side
    271,666.60x = 69,797,927,621.67
  5. Step 5: Solve for x
    x = 69,797,927,621.67/271,666.60
  6. Step 6: Final answer
    x = 256,924.95

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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.