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Finding the Fourth Proportional to 559,221.57, 771,698.22 and 317,472.42

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Solution

The fourth proportional to 559,221.57, 771,698.22 and 317,472.42 is: 438,096.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,221.57 : 771,698.22 = 317,472.42 : x
  2. Step 2: Convert to fraction form
    559,221.57/771,698.22 = 317,472.42/x
  3. Step 3: Cross multiply
    559,221.57x = 771,698.22 × 317,472.42
  4. Step 4: Simplify right side
    559,221.57x = 244,992,901,413.09
  5. Step 5: Solve for x
    x = 244,992,901,413.09/559,221.57
  6. Step 6: Final answer
    x = 438,096.30

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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.