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Finding the Fourth Proportional to 545,763.65, 818,732.95 and 230,267.03

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Solution

The fourth proportional to 545,763.65, 818,732.95 and 230,267.03 is: 345,437.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,763.65 : 818,732.95 = 230,267.03 : x
  2. Step 2: Convert to fraction form
    545,763.65/818,732.95 = 230,267.03/x
  3. Step 3: Cross multiply
    545,763.65x = 818,732.95 × 230,267.03
  4. Step 4: Simplify right side
    545,763.65x = 188,527,200,090.31
  5. Step 5: Solve for x
    x = 188,527,200,090.31/545,763.65
  6. Step 6: Final answer
    x = 345,437.45

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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.