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Finding the Fourth Proportional to 867,653.20, 1,301,674.20 and 335,126.80

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Solution

The fourth proportional to 867,653.20, 1,301,674.20 and 335,126.80 is: 502,765.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,653.20 : 1,301,674.20 = 335,126.80 : x
  2. Step 2: Convert to fraction form
    867,653.20/1,301,674.20 = 335,126.80/x
  3. Step 3: Cross multiply
    867,653.20x = 1,301,674.20 × 335,126.80
  4. Step 4: Simplify right side
    867,653.20x = 436,225,909,288.56
  5. Step 5: Solve for x
    x = 436,225,909,288.56/867,653.20
  6. Step 6: Final answer
    x = 502,765.29

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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.