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Finding the Fourth Proportional to 556,523.20, 768,002.40 and 301,873.60

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Solution

The fourth proportional to 556,523.20, 768,002.40 and 301,873.60 is: 416,585.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,523.20 : 768,002.40 = 301,873.60 : x
  2. Step 2: Convert to fraction form
    556,523.20/768,002.40 = 301,873.60/x
  3. Step 3: Cross multiply
    556,523.20x = 768,002.40 × 301,873.60
  4. Step 4: Simplify right side
    556,523.20x = 231,839,649,296.64
  5. Step 5: Solve for x
    x = 231,839,649,296.64/556,523.20
  6. Step 6: Final answer
    x = 416,585.78

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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.