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Finding the Fourth Proportional to 556,209.28, 767,574.12 and 301,561.12

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Solution

The fourth proportional to 556,209.28, 767,574.12 and 301,561.12 is: 416,157.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,209.28 : 767,574.12 = 301,561.12 : x
  2. Step 2: Convert to fraction form
    556,209.28/767,574.12 = 301,561.12/x
  3. Step 3: Cross multiply
    556,209.28x = 767,574.12 × 301,561.12
  4. Step 4: Simplify right side
    556,209.28x = 231,470,511,310.21
  5. Step 5: Solve for x
    x = 231,470,511,310.21/556,209.28
  6. Step 6: Final answer
    x = 416,157.23

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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.