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Finding the Fourth Proportional to 440,336.82, 607,732.29 and 355,189.62

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Solution

The fourth proportional to 440,336.82, 607,732.29 and 355,189.62 is: 490,216.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,336.82 : 607,732.29 = 355,189.62 : x
  2. Step 2: Convert to fraction form
    440,336.82/607,732.29 = 355,189.62/x
  3. Step 3: Cross multiply
    440,336.82x = 607,732.29 × 355,189.62
  4. Step 4: Simplify right side
    440,336.82x = 215,860,201,146.83
  5. Step 5: Solve for x
    x = 215,860,201,146.83/440,336.82
  6. Step 6: Final answer
    x = 490,216.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.