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Finding the Fourth Proportional to 500,619.96, 691,518.06 and 373,074.12

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Solution

The fourth proportional to 500,619.96, 691,518.06 and 373,074.12 is: 515,336.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,619.96 : 691,518.06 = 373,074.12 : x
  2. Step 2: Convert to fraction form
    500,619.96/691,518.06 = 373,074.12/x
  3. Step 3: Cross multiply
    500,619.96x = 691,518.06 × 373,074.12
  4. Step 4: Simplify right side
    500,619.96x = 257,987,491,698.61
  5. Step 5: Solve for x
    x = 257,987,491,698.61/500,619.96
  6. Step 6: Final answer
    x = 515,336.01

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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.