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Finding the Fourth Proportional to 455,767.40, 683,651.10 and 404,591.60

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Solution

The fourth proportional to 455,767.40, 683,651.10 and 404,591.60 is: 606,887.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,767.40 : 683,651.10 = 404,591.60 : x
  2. Step 2: Convert to fraction form
    455,767.40/683,651.10 = 404,591.60/x
  3. Step 3: Cross multiply
    455,767.40x = 683,651.10 × 404,591.60
  4. Step 4: Simplify right side
    455,767.40x = 276,599,492,390.76
  5. Step 5: Solve for x
    x = 276,599,492,390.76/455,767.40
  6. Step 6: Final answer
    x = 606,887.40

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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.