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Finding the Fourth Proportional to 271,483.20, 407,613.60 and 153,385.20

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Solution

The fourth proportional to 271,483.20, 407,613.60 and 153,385.20 is: 230,297.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,483.20 : 407,613.60 = 153,385.20 : x
  2. Step 2: Convert to fraction form
    271,483.20/407,613.60 = 153,385.20/x
  3. Step 3: Cross multiply
    271,483.20x = 407,613.60 × 153,385.20
  4. Step 4: Simplify right side
    271,483.20x = 62,521,893,558.72
  5. Step 5: Solve for x
    x = 62,521,893,558.72/271,483.20
  6. Step 6: Final answer
    x = 230,297.47

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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.