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Finding the Fourth Proportional to 448,911.84, 673,459.92 and 133,340.64

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Solution

The fourth proportional to 448,911.84, 673,459.92 and 133,340.64 is: 200,038.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,911.84 : 673,459.92 = 133,340.64 : x
  2. Step 2: Convert to fraction form
    448,911.84/673,459.92 = 133,340.64/x
  3. Step 3: Cross multiply
    448,911.84x = 673,459.92 × 133,340.64
  4. Step 4: Simplify right side
    448,911.84x = 89,799,576,747.15
  5. Step 5: Solve for x
    x = 89,799,576,747.15/448,911.84
  6. Step 6: Final answer
    x = 200,038.33

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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.