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Finding the Fourth Proportional to 470,447.80, 649,171.05 and 266,457.98

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Solution

The fourth proportional to 470,447.80, 649,171.05 and 266,457.98 is: 367,685.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,447.80 : 649,171.05 = 266,457.98 : x
  2. Step 2: Convert to fraction form
    470,447.80/649,171.05 = 266,457.98/x
  3. Step 3: Cross multiply
    470,447.80x = 649,171.05 × 266,457.98
  4. Step 4: Simplify right side
    470,447.80x = 172,976,806,657.48
  5. Step 5: Solve for x
    x = 172,976,806,657.48/470,447.80
  6. Step 6: Final answer
    x = 367,685.44

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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.