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Finding the Fourth Proportional to 484,982.81, 669,207.63 and 275,423.45

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Solution

The fourth proportional to 484,982.81, 669,207.63 and 275,423.45 is: 380,045.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,982.81 : 669,207.63 = 275,423.45 : x
  2. Step 2: Convert to fraction form
    484,982.81/669,207.63 = 275,423.45/x
  3. Step 3: Cross multiply
    484,982.81x = 669,207.63 × 275,423.45
  4. Step 4: Simplify right side
    484,982.81x = 184,315,472,202.92
  5. Step 5: Solve for x
    x = 184,315,472,202.92/484,982.81
  6. Step 6: Final answer
    x = 380,045.37

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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.