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Finding the Fourth Proportional to 381,683.70, 572,525.55 and 224,219.70

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Solution

The fourth proportional to 381,683.70, 572,525.55 and 224,219.70 is: 336,329.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,683.70 : 572,525.55 = 224,219.70 : x
  2. Step 2: Convert to fraction form
    381,683.70/572,525.55 = 224,219.70/x
  3. Step 3: Cross multiply
    381,683.70x = 572,525.55 × 224,219.70
  4. Step 4: Simplify right side
    381,683.70x = 128,371,507,063.34
  5. Step 5: Solve for x
    x = 128,371,507,063.34/381,683.70
  6. Step 6: Final answer
    x = 336,329.55

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Double scale
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Similar ratio
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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.