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Finding the Fourth Proportional to 528,255, 792,499.14 and 195,831

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Solution

The fourth proportional to 528,255, 792,499.14 and 195,831 is: 293,789.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,255 : 792,499.14 = 195,831 : x
  2. Step 2: Convert to fraction form
    528,255/792,499.14 = 195,831/x
  3. Step 3: Cross multiply
    528,255x = 792,499.14 × 195,831
  4. Step 4: Simplify right side
    528,255x = 155,195,899,085.34
  5. Step 5: Solve for x
    x = 155,195,899,085.34/528,255
  6. Step 6: Final answer
    x = 293,789.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.