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Finding the Fourth Proportional to 446,681.78, 616,464.21 and 255,722.42

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Solution

The fourth proportional to 446,681.78, 616,464.21 and 255,722.42 is: 352,921.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,681.78 : 616,464.21 = 255,722.42 : x
  2. Step 2: Convert to fraction form
    446,681.78/616,464.21 = 255,722.42/x
  3. Step 3: Cross multiply
    446,681.78x = 616,464.21 × 255,722.42
  4. Step 4: Simplify right side
    446,681.78x = 157,643,719,624.59
  5. Step 5: Solve for x
    x = 157,643,719,624.59/446,681.78
  6. Step 6: Final answer
    x = 352,921.76

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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.