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Finding the Fourth Proportional to 317,281.69, 437,777.90 and 188,154.55

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Solution

The fourth proportional to 317,281.69, 437,777.90 and 188,154.55 is: 259,611.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,281.69 : 437,777.90 = 188,154.55 : x
  2. Step 2: Convert to fraction form
    317,281.69/437,777.90 = 188,154.55/x
  3. Step 3: Cross multiply
    317,281.69x = 437,777.90 × 188,154.55
  4. Step 4: Simplify right side
    317,281.69x = 82,369,902,417.75
  5. Step 5: Solve for x
    x = 82,369,902,417.75/317,281.69
  6. Step 6: Final answer
    x = 259,611.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.