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Finding the Fourth Proportional to 470,765.90, 649,668.12 and 266,837.60

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Solution

The fourth proportional to 470,765.90, 649,668.12 and 266,837.60 is: 368,242.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,765.90 : 649,668.12 = 266,837.60 : x
  2. Step 2: Convert to fraction form
    470,765.90/649,668.12 = 266,837.60/x
  3. Step 3: Cross multiply
    470,765.90x = 649,668.12 × 266,837.60
  4. Step 4: Simplify right side
    470,765.90x = 173,355,881,937.31
  5. Step 5: Solve for x
    x = 173,355,881,937.31/470,765.90
  6. Step 6: Final answer
    x = 368,242.22

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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.