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Finding the Fourth Proportional to 446,142.72, 615,655.44 and 255,177.12

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Solution

The fourth proportional to 446,142.72, 615,655.44 and 255,177.12 is: 352,132.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,142.72 : 615,655.44 = 255,177.12 : x
  2. Step 2: Convert to fraction form
    446,142.72/615,655.44 = 255,177.12/x
  3. Step 3: Cross multiply
    446,142.72x = 615,655.44 × 255,177.12
  4. Step 4: Simplify right side
    446,142.72x = 157,101,182,091.53
  5. Step 5: Solve for x
    x = 157,101,182,091.53/446,142.72
  6. Step 6: Final answer
    x = 352,132.12

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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.