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Finding the Fourth Proportional to 556,628.13, 768,147.11 and 301,979.25

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Solution

The fourth proportional to 556,628.13, 768,147.11 and 301,979.25 is: 416,731.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,628.13 : 768,147.11 = 301,979.25 : x
  2. Step 2: Convert to fraction form
    556,628.13/768,147.11 = 301,979.25/x
  3. Step 3: Cross multiply
    556,628.13x = 768,147.11 × 301,979.25
  4. Step 4: Simplify right side
    556,628.13x = 231,964,486,657.57
  5. Step 5: Solve for x
    x = 231,964,486,657.57/556,628.13
  6. Step 6: Final answer
    x = 416,731.52

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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.