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Finding the Fourth Proportional to 262,571.70, 393,339.15 and 157,077.30

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Solution

The fourth proportional to 262,571.70, 393,339.15 and 157,077.30 is: 235,305.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,571.70 : 393,339.15 = 157,077.30 : x
  2. Step 2: Convert to fraction form
    262,571.70/393,339.15 = 157,077.30/x
  3. Step 3: Cross multiply
    262,571.70x = 393,339.15 × 157,077.30
  4. Step 4: Simplify right side
    262,571.70x = 61,784,651,666.30
  5. Step 5: Solve for x
    x = 61,784,651,666.30/262,571.70
  6. Step 6: Final answer
    x = 235,305.83

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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.