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Finding the Fourth Proportional to 495,804.30, 683,976.56 and 359,539.34

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Solution

The fourth proportional to 495,804.30, 683,976.56 and 359,539.34 is: 495,995.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,804.30 : 683,976.56 = 359,539.34 : x
  2. Step 2: Convert to fraction form
    495,804.30/683,976.56 = 359,539.34/x
  3. Step 3: Cross multiply
    495,804.30x = 683,976.56 × 359,539.34
  4. Step 4: Simplify right side
    495,804.30x = 245,916,480,957.87
  5. Step 5: Solve for x
    x = 245,916,480,957.87/495,804.30
  6. Step 6: Final answer
    x = 495,995.05

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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.