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Finding the Fourth Proportional to 619,986.17, 855,479.04 and 365,302.73

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Solution

The fourth proportional to 619,986.17, 855,479.04 and 365,302.73 is: 504,057.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,986.17 : 855,479.04 = 365,302.73 : x
  2. Step 2: Convert to fraction form
    619,986.17/855,479.04 = 365,302.73/x
  3. Step 3: Cross multiply
    619,986.17x = 855,479.04 × 365,302.73
  4. Step 4: Simplify right side
    619,986.17x = 312,508,829,538.59
  5. Step 5: Solve for x
    x = 312,508,829,538.59/619,986.17
  6. Step 6: Final answer
    x = 504,057.74

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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.