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Finding the Fourth Proportional to 455,444.40, 683,166.60 and 449,223.60

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Solution

The fourth proportional to 455,444.40, 683,166.60 and 449,223.60 is: 673,835.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,444.40 : 683,166.60 = 449,223.60 : x
  2. Step 2: Convert to fraction form
    455,444.40/683,166.60 = 449,223.60/x
  3. Step 3: Cross multiply
    455,444.40x = 683,166.60 × 449,223.60
  4. Step 4: Simplify right side
    455,444.40x = 306,894,559,451.76
  5. Step 5: Solve for x
    x = 306,894,559,451.76/455,444.40
  6. Step 6: Final answer
    x = 673,835.40

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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.