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Finding the Fourth Proportional to 404,780.60, 607,170.90 and 124,311.80

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Solution

The fourth proportional to 404,780.60, 607,170.90 and 124,311.80 is: 186,467.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,780.60 : 607,170.90 = 124,311.80 : x
  2. Step 2: Convert to fraction form
    404,780.60/607,170.90 = 124,311.80/x
  3. Step 3: Cross multiply
    404,780.60x = 607,170.90 × 124,311.80
  4. Step 4: Simplify right side
    404,780.60x = 75,478,507,486.62
  5. Step 5: Solve for x
    x = 75,478,507,486.62/404,780.60
  6. Step 6: Final answer
    x = 186,467.70

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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.