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Finding the Fourth Proportional to 492,785.55, 739,184.25 and 193,407.12

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Solution

The fourth proportional to 492,785.55, 739,184.25 and 193,407.12 is: 290,113.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,785.55 : 739,184.25 = 193,407.12 : x
  2. Step 2: Convert to fraction form
    492,785.55/739,184.25 = 193,407.12/x
  3. Step 3: Cross multiply
    492,785.55x = 739,184.25 × 193,407.12
  4. Step 4: Simplify right side
    492,785.55x = 142,963,496,941.86
  5. Step 5: Solve for x
    x = 142,963,496,941.86/492,785.55
  6. Step 6: Final answer
    x = 290,113.01

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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.