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Finding the Fourth Proportional to 606,124.20, 909,099.90 and 206,783.40

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Solution

The fourth proportional to 606,124.20, 909,099.90 and 206,783.40 is: 310,145.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,124.20 : 909,099.90 = 206,783.40 : x
  2. Step 2: Convert to fraction form
    606,124.20/909,099.90 = 206,783.40/x
  3. Step 3: Cross multiply
    606,124.20x = 909,099.90 × 206,783.40
  4. Step 4: Simplify right side
    606,124.20x = 187,986,768,261.66
  5. Step 5: Solve for x
    x = 187,986,768,261.66/606,124.20
  6. Step 6: Final answer
    x = 310,145.62

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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.