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Finding the Fourth Proportional to 508,511.60, 701,699.62 and 301,744.36

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Solution

The fourth proportional to 508,511.60, 701,699.62 and 301,744.36 is: 416,379.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,511.60 : 701,699.62 = 301,744.36 : x
  2. Step 2: Convert to fraction form
    508,511.60/701,699.62 = 301,744.36/x
  3. Step 3: Cross multiply
    508,511.60x = 701,699.62 × 301,744.36
  4. Step 4: Simplify right side
    508,511.60x = 211,733,902,749.14
  5. Step 5: Solve for x
    x = 211,733,902,749.14/508,511.60
  6. Step 6: Final answer
    x = 416,379.69

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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.