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Finding the Fourth Proportional to 548,152.01, 756,455.39 and 306,448.01

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Solution

The fourth proportional to 548,152.01, 756,455.39 and 306,448.01 is: 422,901.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,152.01 : 756,455.39 = 306,448.01 : x
  2. Step 2: Convert to fraction form
    548,152.01/756,455.39 = 306,448.01/x
  3. Step 3: Cross multiply
    548,152.01x = 756,455.39 × 306,448.01
  4. Step 4: Simplify right side
    548,152.01x = 231,814,243,604.76
  5. Step 5: Solve for x
    x = 231,814,243,604.76/548,152.01
  6. Step 6: Final answer
    x = 422,901.39

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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.