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Finding the Fourth Proportional to 515,870.42, 773,542.22 and 303,053.99

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Solution

The fourth proportional to 515,870.42, 773,542.22 and 303,053.99 is: 454,426.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,870.42 : 773,542.22 = 303,053.99 : x
  2. Step 2: Convert to fraction form
    515,870.42/773,542.22 = 303,053.99/x
  3. Step 3: Cross multiply
    515,870.42x = 773,542.22 × 303,053.99
  4. Step 4: Simplify right side
    515,870.42x = 234,425,050,821.48
  5. Step 5: Solve for x
    x = 234,425,050,821.48/515,870.42
  6. Step 6: Final answer
    x = 454,426.24

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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.