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Finding the Fourth Proportional to 383,412.60, 575,118.90 and 194,455.80

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Solution

The fourth proportional to 383,412.60, 575,118.90 and 194,455.80 is: 291,683.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,412.60 : 575,118.90 = 194,455.80 : x
  2. Step 2: Convert to fraction form
    383,412.60/575,118.90 = 194,455.80/x
  3. Step 3: Cross multiply
    383,412.60x = 575,118.90 × 194,455.80
  4. Step 4: Simplify right side
    383,412.60x = 111,835,205,794.62
  5. Step 5: Solve for x
    x = 111,835,205,794.62/383,412.60
  6. Step 6: Final answer
    x = 291,683.70

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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.