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Finding the Fourth Proportional to 606,661.90, 910,320.90 and 251,711.80

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Solution

The fourth proportional to 606,661.90, 910,320.90 and 251,711.80 is: 377,703.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,661.90 : 910,320.90 = 251,711.80 : x
  2. Step 2: Convert to fraction form
    606,661.90/910,320.90 = 251,711.80/x
  3. Step 3: Cross multiply
    606,661.90x = 910,320.90 × 251,711.80
  4. Step 4: Simplify right side
    606,661.90x = 229,138,512,316.62
  5. Step 5: Solve for x
    x = 229,138,512,316.62/606,661.90
  6. Step 6: Final answer
    x = 377,703.81

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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.