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Finding the Fourth Proportional to 612,194.77, 915,606.24 and 545,199.27

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Solution

The fourth proportional to 612,194.77, 915,606.24 and 545,199.27 is: 815,406.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,194.77 : 915,606.24 = 545,199.27 : x
  2. Step 2: Convert to fraction form
    612,194.77/915,606.24 = 545,199.27/x
  3. Step 3: Cross multiply
    612,194.77x = 915,606.24 × 545,199.27
  4. Step 4: Simplify right side
    612,194.77x = 499,187,849,077.41
  5. Step 5: Solve for x
    x = 499,187,849,077.41/612,194.77
  6. Step 6: Final answer
    x = 815,406.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.