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Finding the Fourth Proportional to 448,149.60, 672,224.40 and 115,725.60

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Solution

The fourth proportional to 448,149.60, 672,224.40 and 115,725.60 is: 173,588.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,149.60 : 672,224.40 = 115,725.60 : x
  2. Step 2: Convert to fraction form
    448,149.60/672,224.40 = 115,725.60/x
  3. Step 3: Cross multiply
    448,149.60x = 672,224.40 × 115,725.60
  4. Step 4: Simplify right side
    448,149.60x = 77,793,572,024.64
  5. Step 5: Solve for x
    x = 77,793,572,024.64/448,149.60
  6. Step 6: Final answer
    x = 173,588.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.