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Finding the Fourth Proportional to 495,820.43, 683,998.49 and 359,555.45

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Solution

The fourth proportional to 495,820.43, 683,998.49 and 359,555.45 is: 496,017.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,820.43 : 683,998.49 = 359,555.45 : x
  2. Step 2: Convert to fraction form
    495,820.43/683,998.49 = 359,555.45/x
  3. Step 3: Cross multiply
    495,820.43x = 683,998.49 × 359,555.45
  4. Step 4: Simplify right side
    495,820.43x = 245,935,379,653.50
  5. Step 5: Solve for x
    x = 245,935,379,653.50/495,820.43
  6. Step 6: Final answer
    x = 496,017.04

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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.