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Finding the Fourth Proportional to 446,675.30, 616,435.55 and 253,120.53

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Solution

The fourth proportional to 446,675.30, 616,435.55 and 253,120.53 is: 349,319.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,675.30 : 616,435.55 = 253,120.53 : x
  2. Step 2: Convert to fraction form
    446,675.30/616,435.55 = 253,120.53/x
  3. Step 3: Cross multiply
    446,675.30x = 616,435.55 × 253,120.53
  4. Step 4: Simplify right side
    446,675.30x = 156,032,493,126.84
  5. Step 5: Solve for x
    x = 156,032,493,126.84/446,675.30
  6. Step 6: Final answer
    x = 349,319.73

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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.