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Finding the Fourth Proportional to 448,857.45, 672,724.85 and 224,280.90

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Solution

The fourth proportional to 448,857.45, 672,724.85 and 224,280.90 is: 336,140.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,857.45 : 672,724.85 = 224,280.90 : x
  2. Step 2: Convert to fraction form
    448,857.45/672,724.85 = 224,280.90/x
  3. Step 3: Cross multiply
    448,857.45x = 672,724.85 × 224,280.90
  4. Step 4: Simplify right side
    448,857.45x = 150,879,333,688.96
  5. Step 5: Solve for x
    x = 150,879,333,688.96/448,857.45
  6. Step 6: Final answer
    x = 336,140.87

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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.