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Finding the Fourth Proportional to 622,291.70, 858,845.81 and 364,247.57

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Solution

The fourth proportional to 622,291.70, 858,845.81 and 364,247.57 is: 502,710.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,291.70 : 858,845.81 = 364,247.57 : x
  2. Step 2: Convert to fraction form
    622,291.70/858,845.81 = 364,247.57/x
  3. Step 3: Cross multiply
    622,291.70x = 858,845.81 × 364,247.57
  4. Step 4: Simplify right side
    622,291.70x = 312,832,502,354.92
  5. Step 5: Solve for x
    x = 312,832,502,354.92/622,291.70
  6. Step 6: Final answer
    x = 502,710.39

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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.