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Finding the Fourth Proportional to 416,491.63, 624,265.16 and 191,386.93

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Solution

The fourth proportional to 416,491.63, 624,265.16 and 191,386.93 is: 286,863.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,491.63 : 624,265.16 = 191,386.93 : x
  2. Step 2: Convert to fraction form
    416,491.63/624,265.16 = 191,386.93/x
  3. Step 3: Cross multiply
    416,491.63x = 624,265.16 × 191,386.93
  4. Step 4: Simplify right side
    416,491.63x = 119,476,192,478.36
  5. Step 5: Solve for x
    x = 119,476,192,478.36/416,491.63
  6. Step 6: Final answer
    x = 286,863.37

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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.