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Finding the Fourth Proportional to 448,063.21, 618,326.89 and 246,859.21

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Solution

The fourth proportional to 448,063.21, 618,326.89 and 246,859.21 is: 340,665.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,063.21 : 618,326.89 = 246,859.21 : x
  2. Step 2: Convert to fraction form
    448,063.21/618,326.89 = 246,859.21/x
  3. Step 3: Cross multiply
    448,063.21x = 618,326.89 × 246,859.21
  4. Step 4: Simplify right side
    448,063.21x = 152,639,687,587.16
  5. Step 5: Solve for x
    x = 152,639,687,587.16/448,063.21
  6. Step 6: Final answer
    x = 340,665.52

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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.