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Finding the Fourth Proportional to 469,009.80, 702,996.30 and 258,798.60

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Solution

The fourth proportional to 469,009.80, 702,996.30 and 258,798.60 is: 387,911.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,009.80 : 702,996.30 = 258,798.60 : x
  2. Step 2: Convert to fraction form
    469,009.80/702,996.30 = 258,798.60/x
  3. Step 3: Cross multiply
    469,009.80x = 702,996.30 × 258,798.60
  4. Step 4: Simplify right side
    469,009.80x = 181,934,458,245.18
  5. Step 5: Solve for x
    x = 181,934,458,245.18/469,009.80
  6. Step 6: Final answer
    x = 387,911.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.