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Finding the Fourth Proportional to 448,610.94, 619,083.11 and 247,406.94

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Solution

The fourth proportional to 448,610.94, 619,083.11 and 247,406.94 is: 341,421.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,610.94 : 619,083.11 = 247,406.94 : x
  2. Step 2: Convert to fraction form
    448,610.94/619,083.11 = 247,406.94/x
  3. Step 3: Cross multiply
    448,610.94x = 619,083.11 × 247,406.94
  4. Step 4: Simplify right side
    448,610.94x = 153,165,457,850.78
  5. Step 5: Solve for x
    x = 153,165,457,850.78/448,610.94
  6. Step 6: Final answer
    x = 341,421.58

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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.