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Finding the Fourth Proportional to 439,566.64, 606,605.76 and 238,362.64

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Solution

The fourth proportional to 439,566.64, 606,605.76 and 238,362.64 is: 328,942.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,566.64 : 606,605.76 = 238,362.64 : x
  2. Step 2: Convert to fraction form
    439,566.64/606,605.76 = 238,362.64/x
  3. Step 3: Cross multiply
    439,566.64x = 606,605.76 × 238,362.64
  4. Step 4: Simplify right side
    439,566.64x = 144,592,150,392.81
  5. Step 5: Solve for x
    x = 144,592,150,392.81/439,566.64
  6. Step 6: Final answer
    x = 328,942.50

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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.