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Finding the Fourth Proportional to 495,405.66, 683,663.31 and 269,051.16

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Solution

The fourth proportional to 495,405.66, 683,663.31 and 269,051.16 is: 371,292.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,405.66 : 683,663.31 = 269,051.16 : x
  2. Step 2: Convert to fraction form
    495,405.66/683,663.31 = 269,051.16/x
  3. Step 3: Cross multiply
    495,405.66x = 683,663.31 × 269,051.16
  4. Step 4: Simplify right side
    495,405.66x = 183,940,406,604.94
  5. Step 5: Solve for x
    x = 183,940,406,604.94/495,405.66
  6. Step 6: Final answer
    x = 371,292.50

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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.