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Finding the Fourth Proportional to 412,390.80, 618,586.20 and 246,502.80

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Solution

The fourth proportional to 412,390.80, 618,586.20 and 246,502.80 is: 369,754.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,390.80 : 618,586.20 = 246,502.80 : x
  2. Step 2: Convert to fraction form
    412,390.80/618,586.20 = 246,502.80/x
  3. Step 3: Cross multiply
    412,390.80x = 618,586.20 × 246,502.80
  4. Step 4: Simplify right side
    412,390.80x = 152,483,230,341.36
  5. Step 5: Solve for x
    x = 152,483,230,341.36/412,390.80
  6. Step 6: Final answer
    x = 369,754.20

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1.5x scale

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.