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Finding the Fourth Proportional to 651,630.70, 977,154.45 and 252,138.70

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Solution

The fourth proportional to 651,630.70, 977,154.45 and 252,138.70 is: 378,095.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,630.70 : 977,154.45 = 252,138.70 : x
  2. Step 2: Convert to fraction form
    651,630.70/977,154.45 = 252,138.70/x
  3. Step 3: Cross multiply
    651,630.70x = 977,154.45 × 252,138.70
  4. Step 4: Simplify right side
    651,630.70x = 246,378,452,722.22
  5. Step 5: Solve for x
    x = 246,378,452,722.22/651,630.70
  6. Step 6: Final answer
    x = 378,095.22

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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.