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Finding the Fourth Proportional to 408,012.32, 563,108.78 and 246,868.70

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Solution

The fourth proportional to 408,012.32, 563,108.78 and 246,868.70 is: 340,710.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,012.32 : 563,108.78 = 246,868.70 : x
  2. Step 2: Convert to fraction form
    408,012.32/563,108.78 = 246,868.70/x
  3. Step 3: Cross multiply
    408,012.32x = 563,108.78 × 246,868.70
  4. Step 4: Simplify right side
    408,012.32x = 139,013,928,427.30
  5. Step 5: Solve for x
    x = 139,013,928,427.30/408,012.32
  6. Step 6: Final answer
    x = 340,710.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.