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Finding the Fourth Proportional to 462,609.50, 693,562.62 and 320,075.87

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Solution

The fourth proportional to 462,609.50, 693,562.62 and 320,075.87 is: 479,870.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,609.50 : 693,562.62 = 320,075.87 : x
  2. Step 2: Convert to fraction form
    462,609.50/693,562.62 = 320,075.87/x
  3. Step 3: Cross multiply
    462,609.50x = 693,562.62 × 320,075.87
  4. Step 4: Simplify right side
    462,609.50x = 221,992,658,995.98
  5. Step 5: Solve for x
    x = 221,992,658,995.98/462,609.50
  6. Step 6: Final answer
    x = 479,870.51

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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.