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Finding the Fourth Proportional to 448,082.80, 672,124.20 and 413,868.40

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Solution

The fourth proportional to 448,082.80, 672,124.20 and 413,868.40 is: 620,802.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,082.80 : 672,124.20 = 413,868.40 : x
  2. Step 2: Convert to fraction form
    448,082.80/672,124.20 = 413,868.40/x
  3. Step 3: Cross multiply
    448,082.80x = 672,124.20 × 413,868.40
  4. Step 4: Simplify right side
    448,082.80x = 278,170,967,255.28
  5. Step 5: Solve for x
    x = 278,170,967,255.28/448,082.80
  6. Step 6: Final answer
    x = 620,802.60

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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.