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Finding the Fourth Proportional to 576,112.90, 863,478.15 and 295,485.70

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Solution

The fourth proportional to 576,112.90, 863,478.15 and 295,485.70 is: 442,874.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,112.90 : 863,478.15 = 295,485.70 : x
  2. Step 2: Convert to fraction form
    576,112.90/863,478.15 = 295,485.70/x
  3. Step 3: Cross multiply
    576,112.90x = 863,478.15 × 295,485.70
  4. Step 4: Simplify right side
    576,112.90x = 255,145,445,587.46
  5. Step 5: Solve for x
    x = 255,145,445,587.46/576,112.90
  6. Step 6: Final answer
    x = 442,874.04

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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.