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Finding the Fourth Proportional to 654,205.99, 980,307.39 and 440,181.16

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Solution

The fourth proportional to 654,205.99, 980,307.39 and 440,181.16 is: 659,597.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,205.99 : 980,307.39 = 440,181.16 : x
  2. Step 2: Convert to fraction form
    654,205.99/980,307.39 = 440,181.16/x
  3. Step 3: Cross multiply
    654,205.99x = 980,307.39 × 440,181.16
  4. Step 4: Simplify right side
    654,205.99x = 431,512,841,636.00
  5. Step 5: Solve for x
    x = 431,512,841,636.00/654,205.99
  6. Step 6: Final answer
    x = 659,597.82

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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.