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Finding the Fourth Proportional to 446,615.90, 616,357.51 and 255,624.92

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Solution

The fourth proportional to 446,615.90, 616,357.51 and 255,624.92 is: 352,778.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,615.90 : 616,357.51 = 255,624.92 : x
  2. Step 2: Convert to fraction form
    446,615.90/616,357.51 = 255,624.92/x
  3. Step 3: Cross multiply
    446,615.90x = 616,357.51 × 255,624.92
  4. Step 4: Simplify right side
    446,615.90x = 157,556,335,464.30
  5. Step 5: Solve for x
    x = 157,556,335,464.30/446,615.90
  6. Step 6: Final answer
    x = 352,778.16

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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.