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Finding the Fourth Proportional to 260,457.94, 359,478 and 153,027.94

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Solution

The fourth proportional to 260,457.94, 359,478 and 153,027.94 is: 211,205.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,457.94 : 359,478 = 153,027.94 : x
  2. Step 2: Convert to fraction form
    260,457.94/359,478 = 153,027.94/x
  3. Step 3: Cross multiply
    260,457.94x = 359,478 × 153,027.94
  4. Step 4: Simplify right side
    260,457.94x = 55,010,177,815.32
  5. Step 5: Solve for x
    x = 55,010,177,815.32/260,457.94
  6. Step 6: Final answer
    x = 211,205.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.