Home / 651,640.20-977,168.70-252,148.20

Finding the Fourth Proportional to 651,640.20, 977,168.70 and 252,148.20

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Solution

The fourth proportional to 651,640.20, 977,168.70 and 252,148.20 is: 378,109.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,640.20 : 977,168.70 = 252,148.20 : x
  2. Step 2: Convert to fraction form
    651,640.20/977,168.70 = 252,148.20/x
  3. Step 3: Cross multiply
    651,640.20x = 977,168.70 × 252,148.20
  4. Step 4: Simplify right side
    651,640.20x = 246,391,328,801.34
  5. Step 5: Solve for x
    x = 246,391,328,801.34/651,640.20
  6. Step 6: Final answer
    x = 378,109.47

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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.