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Finding the Fourth Proportional to 262,433.40, 393,698.70 and 84,946.20

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Solution

The fourth proportional to 262,433.40, 393,698.70 and 84,946.20 is: 127,435.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,433.40 : 393,698.70 = 84,946.20 : x
  2. Step 2: Convert to fraction form
    262,433.40/393,698.70 = 84,946.20/x
  3. Step 3: Cross multiply
    262,433.40x = 393,698.70 × 84,946.20
  4. Step 4: Simplify right side
    262,433.40x = 33,443,208,509.94
  5. Step 5: Solve for x
    x = 33,443,208,509.94/262,433.40
  6. Step 6: Final answer
    x = 127,435.03

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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.