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Finding the Fourth Proportional to 455,460.30, 683,190.45 and 189,083.70

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Solution

The fourth proportional to 455,460.30, 683,190.45 and 189,083.70 is: 283,625.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,460.30 : 683,190.45 = 189,083.70 : x
  2. Step 2: Convert to fraction form
    455,460.30/683,190.45 = 189,083.70/x
  3. Step 3: Cross multiply
    455,460.30x = 683,190.45 × 189,083.70
  4. Step 4: Simplify right side
    455,460.30x = 129,180,178,090.67
  5. Step 5: Solve for x
    x = 129,180,178,090.67/455,460.30
  6. Step 6: Final answer
    x = 283,625.55

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1.5x scale

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.