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Finding the Fourth Proportional to 556,789.16, 768,371.13 and 302,140.37

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Solution

The fourth proportional to 556,789.16, 768,371.13 and 302,140.37 is: 416,954.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,789.16 : 768,371.13 = 302,140.37 : x
  2. Step 2: Convert to fraction form
    556,789.16/768,371.13 = 302,140.37/x
  3. Step 3: Cross multiply
    556,789.16x = 768,371.13 × 302,140.37
  4. Step 4: Simplify right side
    556,789.16x = 232,155,933,673.66
  5. Step 5: Solve for x
    x = 232,155,933,673.66/556,789.16
  6. Step 6: Final answer
    x = 416,954.84

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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.