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Finding the Fourth Proportional to 439,476.52, 606,490.40 and 248,485.81

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Solution

The fourth proportional to 439,476.52, 606,490.40 and 248,485.81 is: 342,917.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,476.52 : 606,490.40 = 248,485.81 : x
  2. Step 2: Convert to fraction form
    439,476.52/606,490.40 = 248,485.81/x
  3. Step 3: Cross multiply
    439,476.52x = 606,490.40 × 248,485.81
  4. Step 4: Simplify right side
    439,476.52x = 150,704,258,301.22
  5. Step 5: Solve for x
    x = 150,704,258,301.22/439,476.52
  6. Step 6: Final answer
    x = 342,917.66

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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.