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Finding the Fourth Proportional to 579,878.00, 869,467.30 and 259,971.92

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Solution

The fourth proportional to 579,878.00, 869,467.30 and 259,971.92 is: 389,801.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,878.00 : 869,467.30 = 259,971.92 : x
  2. Step 2: Convert to fraction form
    579,878.00/869,467.30 = 259,971.92/x
  3. Step 3: Cross multiply
    579,878.00x = 869,467.30 × 259,971.92
  4. Step 4: Simplify right side
    579,878.00x = 226,037,081,621.45
  5. Step 5: Solve for x
    x = 226,037,081,621.45/579,878.00
  6. Step 6: Final answer
    x = 389,801.10

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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.