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Finding the Fourth Proportional to 446,405.50, 616,080.90 and 245,240.38

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Solution

The fourth proportional to 446,405.50, 616,080.90 and 245,240.38 is: 338,454.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,405.50 : 616,080.90 = 245,240.38 : x
  2. Step 2: Convert to fraction form
    446,405.50/616,080.90 = 245,240.38/x
  3. Step 3: Cross multiply
    446,405.50x = 616,080.90 × 245,240.38
  4. Step 4: Simplify right side
    446,405.50x = 151,087,914,026.74
  5. Step 5: Solve for x
    x = 151,087,914,026.74/446,405.50
  6. Step 6: Final answer
    x = 338,454.42

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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.