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Finding the Fourth Proportional to 455,610.84, 683,470.98 and 189,551.40

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Solution

The fourth proportional to 455,610.84, 683,470.98 and 189,551.40 is: 284,349.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,610.84 : 683,470.98 = 189,551.40 : x
  2. Step 2: Convert to fraction form
    455,610.84/683,470.98 = 189,551.40/x
  3. Step 3: Cross multiply
    455,610.84x = 683,470.98 × 189,551.40
  4. Step 4: Simplify right side
    455,610.84x = 129,552,881,118.37
  5. Step 5: Solve for x
    x = 129,552,881,118.37/455,610.84
  6. Step 6: Final answer
    x = 284,349.87

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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.