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Finding the Fourth Proportional to 536,645.73, 740,568.65 and 307,201.76

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Solution

The fourth proportional to 536,645.73, 740,568.65 and 307,201.76 is: 423,937.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,645.73 : 740,568.65 = 307,201.76 : x
  2. Step 2: Convert to fraction form
    536,645.73/740,568.65 = 307,201.76/x
  3. Step 3: Cross multiply
    536,645.73x = 740,568.65 × 307,201.76
  4. Step 4: Simplify right side
    536,645.73x = 227,503,987,441.97
  5. Step 5: Solve for x
    x = 227,503,987,441.97/536,645.73
  6. Step 6: Final answer
    x = 423,937.01

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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.