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Finding the Fourth Proportional to 560,726.62, 773,800.50 and 306,078.01

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Solution

The fourth proportional to 560,726.62, 773,800.50 and 306,078.01 is: 422,386.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,726.62 : 773,800.50 = 306,078.01 : x
  2. Step 2: Convert to fraction form
    560,726.62/773,800.50 = 306,078.01/x
  3. Step 3: Cross multiply
    560,726.62x = 773,800.50 × 306,078.01
  4. Step 4: Simplify right side
    560,726.62x = 236,843,317,177.01
  5. Step 5: Solve for x
    x = 236,843,317,177.01/560,726.62
  6. Step 6: Final answer
    x = 422,386.43

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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.