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Finding the Fourth Proportional to 519,733.76, 717,232.58 and 281,269.76

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Solution

The fourth proportional to 519,733.76, 717,232.58 and 281,269.76 is: 388,152.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,733.76 : 717,232.58 = 281,269.76 : x
  2. Step 2: Convert to fraction form
    519,733.76/717,232.58 = 281,269.76/x
  3. Step 3: Cross multiply
    519,733.76x = 717,232.58 × 281,269.76
  4. Step 4: Simplify right side
    519,733.76x = 201,735,835,640.78
  5. Step 5: Solve for x
    x = 201,735,835,640.78/519,733.76
  6. Step 6: Final answer
    x = 388,152.26

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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.