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Finding the Fourth Proportional to 344,401.60, 475,241.59 and 191,421.63

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Solution

The fourth proportional to 344,401.60, 475,241.59 and 191,421.63 is: 264,143.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,401.60 : 475,241.59 = 191,421.63 : x
  2. Step 2: Convert to fraction form
    344,401.60/475,241.59 = 191,421.63/x
  3. Step 3: Cross multiply
    344,401.60x = 475,241.59 × 191,421.63
  4. Step 4: Simplify right side
    344,401.60x = 90,971,519,801.59
  5. Step 5: Solve for x
    x = 90,971,519,801.59/344,401.60
  6. Step 6: Final answer
    x = 264,143.72

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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.