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Finding the Fourth Proportional to 560,726.12, 773,799.81 and 306,077.51

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Solution

The fourth proportional to 560,726.12, 773,799.81 and 306,077.51 is: 422,385.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,726.12 : 773,799.81 = 306,077.51 : x
  2. Step 2: Convert to fraction form
    560,726.12/773,799.81 = 306,077.51/x
  3. Step 3: Cross multiply
    560,726.12x = 773,799.81 × 306,077.51
  4. Step 4: Simplify right side
    560,726.12x = 236,842,719,083.27
  5. Step 5: Solve for x
    x = 236,842,719,083.27/560,726.12
  6. Step 6: Final answer
    x = 422,385.74

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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.