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Finding the Fourth Proportional to 587,106.58, 810,131.44 and 345,300.92

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Solution

The fourth proportional to 587,106.58, 810,131.44 and 345,300.92 is: 476,470.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,106.58 : 810,131.44 = 345,300.92 : x
  2. Step 2: Convert to fraction form
    587,106.58/810,131.44 = 345,300.92/x
  3. Step 3: Cross multiply
    587,106.58x = 810,131.44 × 345,300.92
  4. Step 4: Simplify right side
    587,106.58x = 279,739,131,552.93
  5. Step 5: Solve for x
    x = 279,739,131,552.93/587,106.58
  6. Step 6: Final answer
    x = 476,470.79

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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.