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Finding the Fourth Proportional to 448,081.80, 672,122.70 and 413,867.40

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Solution

The fourth proportional to 448,081.80, 672,122.70 and 413,867.40 is: 620,801.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,081.80 : 672,122.70 = 413,867.40 : x
  2. Step 2: Convert to fraction form
    448,081.80/672,122.70 = 413,867.40/x
  3. Step 3: Cross multiply
    448,081.80x = 672,122.70 × 413,867.40
  4. Step 4: Simplify right side
    448,081.80x = 278,169,674,329.98
  5. Step 5: Solve for x
    x = 278,169,674,329.98/448,081.80
  6. Step 6: Final answer
    x = 620,801.10

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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.