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Finding the Fourth Proportional to 496,805.76, 685,594.80 and 270,450.72

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Solution

The fourth proportional to 496,805.76, 685,594.80 and 270,450.72 is: 373,223.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,805.76 : 685,594.80 = 270,450.72 : x
  2. Step 2: Convert to fraction form
    496,805.76/685,594.80 = 270,450.72/x
  3. Step 3: Cross multiply
    496,805.76x = 685,594.80 × 270,450.72
  4. Step 4: Simplify right side
    496,805.76x = 185,419,607,288.26
  5. Step 5: Solve for x
    x = 185,419,607,288.26/496,805.76
  6. Step 6: Final answer
    x = 373,223.55

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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.