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Finding the Fourth Proportional to 351,706.19, 527,557.50 and 85,467.47

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Solution

The fourth proportional to 351,706.19, 527,557.50 and 85,467.47 is: 128,200.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,706.19 : 527,557.50 = 85,467.47 : x
  2. Step 2: Convert to fraction form
    351,706.19/527,557.50 = 85,467.47/x
  3. Step 3: Cross multiply
    351,706.19x = 527,557.50 × 85,467.47
  4. Step 4: Simplify right side
    351,706.19x = 45,089,002,166.74
  5. Step 5: Solve for x
    x = 45,089,002,166.74/351,706.19
  6. Step 6: Final answer
    x = 128,200.77

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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.