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Finding the Fourth Proportional to 556,633.15, 768,155.20 and 301,984.34

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Solution

The fourth proportional to 556,633.15, 768,155.20 and 301,984.34 is: 416,739.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,633.15 : 768,155.20 = 301,984.34 : x
  2. Step 2: Convert to fraction form
    556,633.15/768,155.20 = 301,984.34/x
  3. Step 3: Cross multiply
    556,633.15x = 768,155.20 × 301,984.34
  4. Step 4: Simplify right side
    556,633.15x = 231,970,836,493.83
  5. Step 5: Solve for x
    x = 231,970,836,493.83/556,633.15
  6. Step 6: Final answer
    x = 416,739.17

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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.