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Finding the Fourth Proportional to 495,880.40, 743,820.60 and 158,920.40

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Solution

The fourth proportional to 495,880.40, 743,820.60 and 158,920.40 is: 238,380.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,880.40 : 743,820.60 = 158,920.40 : x
  2. Step 2: Convert to fraction form
    495,880.40/743,820.60 = 158,920.40/x
  3. Step 3: Cross multiply
    495,880.40x = 743,820.60 × 158,920.40
  4. Step 4: Simplify right side
    495,880.40x = 118,208,267,280.24
  5. Step 5: Solve for x
    x = 118,208,267,280.24/495,880.40
  6. Step 6: Final answer
    x = 238,380.60

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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.