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Finding the Fourth Proportional to 332,783.40, 499,175.10 and 313,100.40

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Solution

The fourth proportional to 332,783.40, 499,175.10 and 313,100.40 is: 469,650.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,783.40 : 499,175.10 = 313,100.40 : x
  2. Step 2: Convert to fraction form
    332,783.40/499,175.10 = 313,100.40/x
  3. Step 3: Cross multiply
    332,783.40x = 499,175.10 × 313,100.40
  4. Step 4: Simplify right side
    332,783.40x = 156,291,923,480.04
  5. Step 5: Solve for x
    x = 156,291,923,480.04/332,783.40
  6. Step 6: Final answer
    x = 469,650.60

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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.