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Finding the Fourth Proportional to 426,862, 589,061.34 and 235,871.26

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Solution

The fourth proportional to 426,862, 589,061.34 and 235,871.26 is: 325,497.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,862 : 589,061.34 = 235,871.26 : x
  2. Step 2: Convert to fraction form
    426,862/589,061.34 = 235,871.26/x
  3. Step 3: Cross multiply
    426,862x = 589,061.34 × 235,871.26
  4. Step 4: Simplify right side
    426,862x = 138,942,640,483.09
  5. Step 5: Solve for x
    x = 138,942,640,483.09/426,862
  6. Step 6: Final answer
    x = 325,497.80

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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.