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Finding the Fourth Proportional to 446,617.70, 616,360 and 255,626.72

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Solution

The fourth proportional to 446,617.70, 616,360 and 255,626.72 is: 352,780.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,617.70 : 616,360 = 255,626.72 : x
  2. Step 2: Convert to fraction form
    446,617.70/616,360 = 255,626.72/x
  3. Step 3: Cross multiply
    446,617.70x = 616,360 × 255,626.72
  4. Step 4: Simplify right side
    446,617.70x = 157,558,085,139.20
  5. Step 5: Solve for x
    x = 157,558,085,139.20/446,617.70
  6. Step 6: Final answer
    x = 352,780.66

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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.