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Finding the Fourth Proportional to 561,824.57, 775,127.99 and 319,935.62

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Solution

The fourth proportional to 561,824.57, 775,127.99 and 319,935.62 is: 441,403.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,824.57 : 775,127.99 = 319,935.62 : x
  2. Step 2: Convert to fraction form
    561,824.57/775,127.99 = 319,935.62/x
  3. Step 3: Cross multiply
    561,824.57x = 775,127.99 × 319,935.62
  4. Step 4: Simplify right side
    561,824.57x = 247,991,048,584.69
  5. Step 5: Solve for x
    x = 247,991,048,584.69/561,824.57
  6. Step 6: Final answer
    x = 441,403.00

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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.