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Finding the Fourth Proportional to 439,569.42, 659,328.62 and 169,644.76

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Solution

The fourth proportional to 439,569.42, 659,328.62 and 169,644.76 is: 254,457.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,569.42 : 659,328.62 = 169,644.76 : x
  2. Step 2: Convert to fraction form
    439,569.42/659,328.62 = 169,644.76/x
  3. Step 3: Cross multiply
    439,569.42x = 659,328.62 × 169,644.76
  4. Step 4: Simplify right side
    439,569.42x = 111,851,645,501.03
  5. Step 5: Solve for x
    x = 111,851,645,501.03/439,569.42
  6. Step 6: Final answer
    x = 254,457.29

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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.