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Finding the Fourth Proportional to 578,215.08, 797,785.46 and 333,139.86

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Solution

The fourth proportional to 578,215.08, 797,785.46 and 333,139.86 is: 459,645.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,215.08 : 797,785.46 = 333,139.86 : x
  2. Step 2: Convert to fraction form
    578,215.08/797,785.46 = 333,139.86/x
  3. Step 3: Cross multiply
    578,215.08x = 797,785.46 × 333,139.86
  4. Step 4: Simplify right side
    578,215.08x = 265,774,136,454.44
  5. Step 5: Solve for x
    x = 265,774,136,454.44/578,215.08
  6. Step 6: Final answer
    x = 459,645.81

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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.