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Finding the Fourth Proportional to 354,671.70, 532,072.35 and 144,330.90

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Solution

The fourth proportional to 354,671.70, 532,072.35 and 144,330.90 is: 216,522.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,671.70 : 532,072.35 = 144,330.90 : x
  2. Step 2: Convert to fraction form
    354,671.70/532,072.35 = 144,330.90/x
  3. Step 3: Cross multiply
    354,671.70x = 532,072.35 × 144,330.90
  4. Step 4: Simplify right side
    354,671.70x = 76,794,481,140.62
  5. Step 5: Solve for x
    x = 76,794,481,140.62/354,671.70
  6. Step 6: Final answer
    x = 216,522.72

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1.5x scale

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.