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Finding the Fourth Proportional to 455,563.44, 683,347.59 and 298,784.70

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Solution

The fourth proportional to 455,563.44, 683,347.59 and 298,784.70 is: 448,178.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,563.44 : 683,347.59 = 298,784.70 : x
  2. Step 2: Convert to fraction form
    455,563.44/683,347.59 = 298,784.70/x
  3. Step 3: Cross multiply
    455,563.44x = 683,347.59 × 298,784.70
  4. Step 4: Simplify right side
    455,563.44x = 204,173,804,673.87
  5. Step 5: Solve for x
    x = 204,173,804,673.87/455,563.44
  6. Step 6: Final answer
    x = 448,178.64

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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.