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Finding the Fourth Proportional to 639,176.24, 958,453.32 and 339,800.24

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Solution

The fourth proportional to 639,176.24, 958,453.32 and 339,800.24 is: 509,535.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,176.24 : 958,453.32 = 339,800.24 : x
  2. Step 2: Convert to fraction form
    639,176.24/958,453.32 = 339,800.24/x
  3. Step 3: Cross multiply
    639,176.24x = 958,453.32 × 339,800.24
  4. Step 4: Simplify right side
    639,176.24x = 325,682,668,164.80
  5. Step 5: Solve for x
    x = 325,682,668,164.80/639,176.24
  6. Step 6: Final answer
    x = 509,535.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.