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Finding the Fourth Proportional to 613,364.88, 919,185.86 and 522,939.94

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Solution

The fourth proportional to 613,364.88, 919,185.86 and 522,939.94 is: 783,675.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,364.88 : 919,185.86 = 522,939.94 : x
  2. Step 2: Convert to fraction form
    613,364.88/919,185.86 = 522,939.94/x
  3. Step 3: Cross multiply
    613,364.88x = 919,185.86 × 522,939.94
  4. Step 4: Simplify right side
    613,364.88x = 480,678,998,477.25
  5. Step 5: Solve for x
    x = 480,678,998,477.25/613,364.88
  6. Step 6: Final answer
    x = 783,675.45

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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.