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Finding the Fourth Proportional to 446,671.54, 616,430.36 and 253,116.78

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Solution

The fourth proportional to 446,671.54, 616,430.36 and 253,116.78 is: 349,314.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,671.54 : 616,430.36 = 253,116.78 : x
  2. Step 2: Convert to fraction form
    446,671.54/616,430.36 = 253,116.78/x
  3. Step 3: Cross multiply
    446,671.54x = 616,430.36 × 253,116.78
  4. Step 4: Simplify right side
    446,671.54x = 156,028,867,817.44
  5. Step 5: Solve for x
    x = 156,028,867,817.44/446,671.54
  6. Step 6: Final answer
    x = 349,314.55

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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.