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Finding the Fourth Proportional to 658,078.40, 985,735.20 and 362,244.80

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Solution

The fourth proportional to 658,078.40, 985,735.20 and 362,244.80 is: 542,606.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,078.40 : 985,735.20 = 362,244.80 : x
  2. Step 2: Convert to fraction form
    658,078.40/985,735.20 = 362,244.80/x
  3. Step 3: Cross multiply
    658,078.40x = 985,735.20 × 362,244.80
  4. Step 4: Simplify right side
    658,078.40x = 357,077,450,376.96
  5. Step 5: Solve for x
    x = 357,077,450,376.96/658,078.40
  6. Step 6: Final answer
    x = 542,606.25

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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.