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Finding the Fourth Proportional to 566,717.70, 782,069.22 and 308,590.65

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Solution

The fourth proportional to 566,717.70, 782,069.22 and 308,590.65 is: 425,854.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,717.70 : 782,069.22 = 308,590.65 : x
  2. Step 2: Convert to fraction form
    566,717.70/782,069.22 = 308,590.65/x
  3. Step 3: Cross multiply
    566,717.70x = 782,069.22 × 308,590.65
  4. Step 4: Simplify right side
    566,717.70x = 241,339,248,944.79
  5. Step 5: Solve for x
    x = 241,339,248,944.79/566,717.70
  6. Step 6: Final answer
    x = 425,854.44

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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.