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Finding the Fourth Proportional to 493,131.44, 680,520.84 and 266,776.88

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Solution

The fourth proportional to 493,131.44, 680,520.84 and 266,776.88 is: 368,151.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,131.44 : 680,520.84 = 266,776.88 : x
  2. Step 2: Convert to fraction form
    493,131.44/680,520.84 = 266,776.88/x
  3. Step 3: Cross multiply
    493,131.44x = 680,520.84 × 266,776.88
  4. Step 4: Simplify right side
    493,131.44x = 181,547,226,470.18
  5. Step 5: Solve for x
    x = 181,547,226,470.18/493,131.44
  6. Step 6: Final answer
    x = 368,151.80

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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.