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Finding the Fourth Proportional to 446,618.70, 616,361.40 and 255,627.72

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Solution

The fourth proportional to 446,618.70, 616,361.40 and 255,627.72 is: 352,782.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,618.70 : 616,361.40 = 255,627.72 : x
  2. Step 2: Convert to fraction form
    446,618.70/616,361.40 = 255,627.72/x
  3. Step 3: Cross multiply
    446,618.70x = 616,361.40 × 255,627.72
  4. Step 4: Simplify right side
    446,618.70x = 157,559,059,378.01
  5. Step 5: Solve for x
    x = 157,559,059,378.01/446,618.70
  6. Step 6: Final answer
    x = 352,782.05

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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.