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Finding the Fourth Proportional to 539,133.60, 744,002.22 and 297,431.22

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Solution

The fourth proportional to 539,133.60, 744,002.22 and 297,431.22 is: 410,453.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,133.60 : 744,002.22 = 297,431.22 : x
  2. Step 2: Convert to fraction form
    539,133.60/744,002.22 = 297,431.22/x
  3. Step 3: Cross multiply
    539,133.60x = 744,002.22 × 297,431.22
  4. Step 4: Simplify right side
    539,133.60x = 221,289,487,977.31
  5. Step 5: Solve for x
    x = 221,289,487,977.31/539,133.60
  6. Step 6: Final answer
    x = 410,453.90

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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.