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Finding the Fourth Proportional to 383,998.76, 530,087.76 and 248,098.52

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Solution

The fourth proportional to 383,998.76, 530,087.76 and 248,098.52 is: 342,485.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,998.76 : 530,087.76 = 248,098.52 : x
  2. Step 2: Convert to fraction form
    383,998.76/530,087.76 = 248,098.52/x
  3. Step 3: Cross multiply
    383,998.76x = 530,087.76 × 248,098.52
  4. Step 4: Simplify right side
    383,998.76x = 131,513,988,726.12
  5. Step 5: Solve for x
    x = 131,513,988,726.12/383,998.76
  6. Step 6: Final answer
    x = 342,485.45

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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.