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Finding the Fourth Proportional to 476,352.19, 714,668.64 and 191,896.36

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Solution

The fourth proportional to 476,352.19, 714,668.64 and 191,896.36 is: 287,901.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,352.19 : 714,668.64 = 191,896.36 : x
  2. Step 2: Convert to fraction form
    476,352.19/714,668.64 = 191,896.36/x
  3. Step 3: Cross multiply
    476,352.19x = 714,668.64 × 191,896.36
  4. Step 4: Simplify right side
    476,352.19x = 137,142,310,622.15
  5. Step 5: Solve for x
    x = 137,142,310,622.15/476,352.19
  6. Step 6: Final answer
    x = 287,901.08

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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.