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Finding the Fourth Proportional to 556,628.51, 768,147.62 and 301,979.63

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Solution

The fourth proportional to 556,628.51, 768,147.62 and 301,979.63 is: 416,732.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,628.51 : 768,147.62 = 301,979.63 : x
  2. Step 2: Convert to fraction form
    556,628.51/768,147.62 = 301,979.63/x
  3. Step 3: Cross multiply
    556,628.51x = 768,147.62 × 301,979.63
  4. Step 4: Simplify right side
    556,628.51x = 231,964,928,722.34
  5. Step 5: Solve for x
    x = 231,964,928,722.34/556,628.51
  6. Step 6: Final answer
    x = 416,732.03

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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.