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Finding the Fourth Proportional to 651,641.20, 977,222 and 225,068.48

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Solution

The fourth proportional to 651,641.20, 977,222 and 225,068.48 is: 337,519.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,641.20 : 977,222 = 225,068.48 : x
  2. Step 2: Convert to fraction form
    651,641.20/977,222 = 225,068.48/x
  3. Step 3: Cross multiply
    651,641.20x = 977,222 × 225,068.48
  4. Step 4: Simplify right side
    651,641.20x = 219,941,870,162.56
  5. Step 5: Solve for x
    x = 219,941,870,162.56/651,641.20
  6. Step 6: Final answer
    x = 337,519.90

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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.