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Finding the Fourth Proportional to 317,505.42, 476,262.99 and 80,852.58

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Solution

The fourth proportional to 317,505.42, 476,262.99 and 80,852.58 is: 121,280.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,505.42 : 476,262.99 = 80,852.58 : x
  2. Step 2: Convert to fraction form
    317,505.42/476,262.99 = 80,852.58/x
  3. Step 3: Cross multiply
    317,505.42x = 476,262.99 × 80,852.58
  4. Step 4: Simplify right side
    317,505.42x = 38,507,091,500.01
  5. Step 5: Solve for x
    x = 38,507,091,500.01/317,505.42
  6. Step 6: Final answer
    x = 121,280.11

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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.