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Finding the Fourth Proportional to 262,340.10, 393,412.95 and 84,852.90

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Solution

The fourth proportional to 262,340.10, 393,412.95 and 84,852.90 is: 127,247.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,340.10 : 393,412.95 = 84,852.90 : x
  2. Step 2: Convert to fraction form
    262,340.10/393,412.95 = 84,852.90/x
  3. Step 3: Cross multiply
    262,340.10x = 393,412.95 × 84,852.90
  4. Step 4: Simplify right side
    262,340.10x = 33,382,229,705.06
  5. Step 5: Solve for x
    x = 33,382,229,705.06/262,340.10
  6. Step 6: Final answer
    x = 127,247.91

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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.