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Finding the Fourth Proportional to 495,816.68, 683,993.31 and 359,551.70

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Solution

The fourth proportional to 495,816.68, 683,993.31 and 359,551.70 is: 496,011.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,816.68 : 683,993.31 = 359,551.70 : x
  2. Step 2: Convert to fraction form
    495,816.68/683,993.31 = 359,551.70/x
  3. Step 3: Cross multiply
    495,816.68x = 683,993.31 × 359,551.70
  4. Step 4: Simplify right side
    495,816.68x = 245,930,953,979.16
  5. Step 5: Solve for x
    x = 245,930,953,979.16/495,816.68
  6. Step 6: Final answer
    x = 496,011.87

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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.