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Finding the Fourth Proportional to 508,821.37, 763,248.24 and 255,963.67

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Solution

The fourth proportional to 508,821.37, 763,248.24 and 255,963.67 is: 383,953.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,821.37 : 763,248.24 = 255,963.67 : x
  2. Step 2: Convert to fraction form
    508,821.37/763,248.24 = 255,963.67/x
  3. Step 3: Cross multiply
    508,821.37x = 763,248.24 × 255,963.67
  4. Step 4: Simplify right side
    508,821.37x = 195,363,820,631.44
  5. Step 5: Solve for x
    x = 195,363,820,631.44/508,821.37
  6. Step 6: Final answer
    x = 383,953.65

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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.