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Finding the Fourth Proportional to 455,057.99, 628,104.93 and 264,132.89

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Solution

The fourth proportional to 455,057.99, 628,104.93 and 264,132.89 is: 364,575.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,057.99 : 628,104.93 = 264,132.89 : x
  2. Step 2: Convert to fraction form
    455,057.99/628,104.93 = 264,132.89/x
  3. Step 3: Cross multiply
    455,057.99x = 628,104.93 × 264,132.89
  4. Step 4: Simplify right side
    455,057.99x = 165,903,171,954.41
  5. Step 5: Solve for x
    x = 165,903,171,954.41/455,057.99
  6. Step 6: Final answer
    x = 364,575.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.