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Finding the Fourth Proportional to 530,843.37, 732,560.06 and 289,125.20

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Solution

The fourth proportional to 530,843.37, 732,560.06 and 289,125.20 is: 398,990.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,843.37 : 732,560.06 = 289,125.20 : x
  2. Step 2: Convert to fraction form
    530,843.37/732,560.06 = 289,125.20/x
  3. Step 3: Cross multiply
    530,843.37x = 732,560.06 × 289,125.20
  4. Step 4: Simplify right side
    530,843.37x = 211,801,568,751.09
  5. Step 5: Solve for x
    x = 211,801,568,751.09/530,843.37
  6. Step 6: Final answer
    x = 398,990.70

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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.