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Finding the Fourth Proportional to 455,397.48, 683,512.92 and 230,912.87

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Solution

The fourth proportional to 455,397.48, 683,512.92 and 230,912.87 is: 346,580.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,397.48 : 683,512.92 = 230,912.87 : x
  2. Step 2: Convert to fraction form
    455,397.48/683,512.92 = 230,912.87/x
  3. Step 3: Cross multiply
    455,397.48x = 683,512.92 × 230,912.87
  4. Step 4: Simplify right side
    455,397.48x = 157,831,926,621.72
  5. Step 5: Solve for x
    x = 157,831,926,621.72/455,397.48
  6. Step 6: Final answer
    x = 346,580.59

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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.