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Finding the Fourth Proportional to 272,354.40, 375,921 and 191,805.84

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Solution

The fourth proportional to 272,354.40, 375,921 and 191,805.84 is: 264,742.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,354.40 : 375,921 = 191,805.84 : x
  2. Step 2: Convert to fraction form
    272,354.40/375,921 = 191,805.84/x
  3. Step 3: Cross multiply
    272,354.40x = 375,921 × 191,805.84
  4. Step 4: Simplify right side
    272,354.40x = 72,103,843,178.64
  5. Step 5: Solve for x
    x = 72,103,843,178.64/272,354.40
  6. Step 6: Final answer
    x = 264,742.71

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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.