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Finding the Fourth Proportional to 294,663.40, 440,828.70 and 255,653.80

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Solution

The fourth proportional to 294,663.40, 440,828.70 and 255,653.80 is: 382,468.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,663.40 : 440,828.70 = 255,653.80 : x
  2. Step 2: Convert to fraction form
    294,663.40/440,828.70 = 255,653.80/x
  3. Step 3: Cross multiply
    294,663.40x = 440,828.70 × 255,653.80
  4. Step 4: Simplify right side
    294,663.40x = 112,699,532,304.06
  5. Step 5: Solve for x
    x = 112,699,532,304.06/294,663.40
  6. Step 6: Final answer
    x = 382,468.72

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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.