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Finding the Fourth Proportional to 344,390.50, 475,231.56 and 191,416.69

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Solution

The fourth proportional to 344,390.50, 475,231.56 and 191,416.69 is: 264,139.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,390.50 : 475,231.56 = 191,416.69 : x
  2. Step 2: Convert to fraction form
    344,390.50/475,231.56 = 191,416.69/x
  3. Step 3: Cross multiply
    344,390.50x = 475,231.56 × 191,416.69
  4. Step 4: Simplify right side
    344,390.50x = 90,967,249,401.79
  5. Step 5: Solve for x
    x = 90,967,249,401.79/344,390.50
  6. Step 6: Final answer
    x = 264,139.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.