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Finding the Fourth Proportional to 534,009.70, 746,213.90 and 534,009.70

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Solution

The fourth proportional to 534,009.70, 746,213.90 and 534,009.70 is: 746,213.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,009.70 : 746,213.90 = 534,009.70 : x
  2. Step 2: Convert to fraction form
    534,009.70/746,213.90 = 534,009.70/x
  3. Step 3: Cross multiply
    534,009.70x = 746,213.90 × 534,009.70
  4. Step 4: Simplify right side
    534,009.70x = 398,485,460,874.83
  5. Step 5: Solve for x
    x = 398,485,460,874.83/534,009.70
  6. Step 6: Final answer
    x = 746,213.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.