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Finding the Fourth Proportional to 476,442.79, 714,512.46 and 156,520.40

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Solution

The fourth proportional to 476,442.79, 714,512.46 and 156,520.40 is: 234,730.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,442.79 : 714,512.46 = 156,520.40 : x
  2. Step 2: Convert to fraction form
    476,442.79/714,512.46 = 156,520.40/x
  3. Step 3: Cross multiply
    476,442.79x = 714,512.46 × 156,520.40
  4. Step 4: Simplify right side
    476,442.79x = 111,835,776,044.18
  5. Step 5: Solve for x
    x = 111,835,776,044.18/476,442.79
  6. Step 6: Final answer
    x = 234,730.76

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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.