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Finding the Fourth Proportional to 564,816.75, 779,452.59 and 310,173.41

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Solution

The fourth proportional to 564,816.75, 779,452.59 and 310,173.41 is: 428,042.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,816.75 : 779,452.59 = 310,173.41 : x
  2. Step 2: Convert to fraction form
    564,816.75/779,452.59 = 310,173.41/x
  3. Step 3: Cross multiply
    564,816.75x = 779,452.59 × 310,173.41
  4. Step 4: Simplify right side
    564,816.75x = 241,765,463,876.37
  5. Step 5: Solve for x
    x = 241,765,463,876.37/564,816.75
  6. Step 6: Final answer
    x = 428,042.31

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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.