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Finding the Fourth Proportional to 448,048.60, 672,072.90 and 413,834.20

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Solution

The fourth proportional to 448,048.60, 672,072.90 and 413,834.20 is: 620,751.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,048.60 : 672,072.90 = 413,834.20 : x
  2. Step 2: Convert to fraction form
    448,048.60/672,072.90 = 413,834.20/x
  3. Step 3: Cross multiply
    448,048.60x = 672,072.90 × 413,834.20
  4. Step 4: Simplify right side
    448,048.60x = 278,126,750,913.18
  5. Step 5: Solve for x
    x = 278,126,750,913.18/448,048.60
  6. Step 6: Final answer
    x = 620,751.30

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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.