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Finding the Fourth Proportional to 298,728.84, 448,169.64 and 99,104.88

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Solution

The fourth proportional to 298,728.84, 448,169.64 and 99,104.88 is: 148,682.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,728.84 : 448,169.64 = 99,104.88 : x
  2. Step 2: Convert to fraction form
    298,728.84/448,169.64 = 99,104.88/x
  3. Step 3: Cross multiply
    298,728.84x = 448,169.64 × 99,104.88
  4. Step 4: Simplify right side
    298,728.84x = 44,415,798,391.84
  5. Step 5: Solve for x
    x = 44,415,798,391.84/298,728.84
  6. Step 6: Final answer
    x = 148,682.66

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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.