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Finding the Fourth Proportional to 586,985.20, 880,218.60 and 231,881.20

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Solution

The fourth proportional to 586,985.20, 880,218.60 and 231,881.20 is: 347,719.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,985.20 : 880,218.60 = 231,881.20 : x
  2. Step 2: Convert to fraction form
    586,985.20/880,218.60 = 231,881.20/x
  3. Step 3: Cross multiply
    586,985.20x = 880,218.60 × 231,881.20
  4. Step 4: Simplify right side
    586,985.20x = 204,106,145,230.32
  5. Step 5: Solve for x
    x = 204,106,145,230.32/586,985.20
  6. Step 6: Final answer
    x = 347,719.41

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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.