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Finding the Fourth Proportional to 566,748.65, 780,782.82 and 394,370.17

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Solution

The fourth proportional to 566,748.65, 780,782.82 and 394,370.17 is: 543,305.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,748.65 : 780,782.82 = 394,370.17 : x
  2. Step 2: Convert to fraction form
    566,748.65/780,782.82 = 394,370.17/x
  3. Step 3: Cross multiply
    566,748.65x = 780,782.82 × 394,370.17
  4. Step 4: Simplify right side
    566,748.65x = 307,917,454,447.38
  5. Step 5: Solve for x
    x = 307,917,454,447.38/566,748.65
  6. Step 6: Final answer
    x = 543,305.14

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Double scale
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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.