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Finding the Fourth Proportional to 324,803.20, 486,513.60 and 262,595.20

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Solution

The fourth proportional to 324,803.20, 486,513.60 and 262,595.20 is: 393,333.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,803.20 : 486,513.60 = 262,595.20 : x
  2. Step 2: Convert to fraction form
    324,803.20/486,513.60 = 262,595.20/x
  3. Step 3: Cross multiply
    324,803.20x = 486,513.60 × 262,595.20
  4. Step 4: Simplify right side
    324,803.20x = 127,756,136,094.72
  5. Step 5: Solve for x
    x = 127,756,136,094.72/324,803.20
  6. Step 6: Final answer
    x = 393,333.98

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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.