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Finding the Fourth Proportional to 606,847.20, 908,715.60 and 448,216.80

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Solution

The fourth proportional to 606,847.20, 908,715.60 and 448,216.80 is: 671,176.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,847.20 : 908,715.60 = 448,216.80 : x
  2. Step 2: Convert to fraction form
    606,847.20/908,715.60 = 448,216.80/x
  3. Step 3: Cross multiply
    606,847.20x = 908,715.60 × 448,216.80
  4. Step 4: Simplify right side
    606,847.20x = 407,301,598,342.08
  5. Step 5: Solve for x
    x = 407,301,598,342.08/606,847.20
  6. Step 6: Final answer
    x = 671,176.53

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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.