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Finding the Fourth Proportional to 577,896.53, 796,648.47 and 405,291.20

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Solution

The fourth proportional to 577,896.53, 796,648.47 and 405,291.20 is: 558,706.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,896.53 : 796,648.47 = 405,291.20 : x
  2. Step 2: Convert to fraction form
    577,896.53/796,648.47 = 405,291.20/x
  3. Step 3: Cross multiply
    577,896.53x = 796,648.47 × 405,291.20
  4. Step 4: Simplify right side
    577,896.53x = 322,874,608,881.38
  5. Step 5: Solve for x
    x = 322,874,608,881.38/577,896.53
  6. Step 6: Final answer
    x = 558,706.61

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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.