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Finding the Fourth Proportional to 577,400.20, 866,975.10 and 444,430.60

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Solution

The fourth proportional to 577,400.20, 866,975.10 and 444,430.60 is: 667,319.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,400.20 : 866,975.10 = 444,430.60 : x
  2. Step 2: Convert to fraction form
    577,400.20/866,975.10 = 444,430.60/x
  3. Step 3: Cross multiply
    577,400.20x = 866,975.10 × 444,430.60
  4. Step 4: Simplify right side
    577,400.20x = 385,310,263,878.06
  5. Step 5: Solve for x
    x = 385,310,263,878.06/577,400.20
  6. Step 6: Final answer
    x = 667,319.24

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1.5x scale

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.