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Finding the Fourth Proportional to 555,991.77, 766,695.51 and 475,685.13

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Solution

The fourth proportional to 555,991.77, 766,695.51 and 475,685.13 is: 655,955.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,991.77 : 766,695.51 = 475,685.13 : x
  2. Step 2: Convert to fraction form
    555,991.77/766,695.51 = 475,685.13/x
  3. Step 3: Cross multiply
    555,991.77x = 766,695.51 × 475,685.13
  4. Step 4: Simplify right side
    555,991.77x = 364,705,653,344.77
  5. Step 5: Solve for x
    x = 364,705,653,344.77/555,991.77
  6. Step 6: Final answer
    x = 655,955.13

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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.