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Finding the Fourth Proportional to 443,399.76, 607,459.91 and 426,794.66

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Solution

The fourth proportional to 443,399.76, 607,459.91 and 426,794.66 is: 584,710.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,399.76 : 607,459.91 = 426,794.66 : x
  2. Step 2: Convert to fraction form
    443,399.76/607,459.91 = 426,794.66/x
  3. Step 3: Cross multiply
    443,399.76x = 607,459.91 × 426,794.66
  4. Step 4: Simplify right side
    443,399.76x = 259,260,645,752.08
  5. Step 5: Solve for x
    x = 259,260,645,752.08/443,399.76
  6. Step 6: Final answer
    x = 584,710.84

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.