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Finding the Fourth Proportional to 264,130.60, 395,588.40 and 216,891.40

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Solution

The fourth proportional to 264,130.60, 395,588.40 and 216,891.40 is: 324,838.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,130.60 : 395,588.40 = 216,891.40 : x
  2. Step 2: Convert to fraction form
    264,130.60/395,588.40 = 216,891.40/x
  3. Step 3: Cross multiply
    264,130.60x = 395,588.40 × 216,891.40
  4. Step 4: Simplify right side
    264,130.60x = 85,799,721,899.76
  5. Step 5: Solve for x
    x = 85,799,721,899.76/264,130.60
  6. Step 6: Final answer
    x = 324,838.25

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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.