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Finding the Fourth Proportional to 713,814.57, 985,061.48 and 441,828.31

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Solution

The fourth proportional to 713,814.57, 985,061.48 and 441,828.31 is: 609,721.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,814.57 : 985,061.48 = 441,828.31 : x
  2. Step 2: Convert to fraction form
    713,814.57/985,061.48 = 441,828.31/x
  3. Step 3: Cross multiply
    713,814.57x = 985,061.48 × 441,828.31
  4. Step 4: Simplify right side
    713,814.57x = 435,228,048,954.50
  5. Step 5: Solve for x
    x = 435,228,048,954.50/713,814.57
  6. Step 6: Final answer
    x = 609,721.44

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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.