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Finding the Fourth Proportional to 455,849.53, 683,803.45 and 175,366.78

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Solution

The fourth proportional to 455,849.53, 683,803.45 and 175,366.78 is: 263,061.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,849.53 : 683,803.45 = 175,366.78 : x
  2. Step 2: Convert to fraction form
    455,849.53/683,803.45 = 175,366.78/x
  3. Step 3: Cross multiply
    455,849.53x = 683,803.45 × 175,366.78
  4. Step 4: Simplify right side
    455,849.53x = 119,916,405,913.74
  5. Step 5: Solve for x
    x = 119,916,405,913.74/455,849.53
  6. Step 6: Final answer
    x = 263,061.38

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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.