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Finding the Fourth Proportional to 264,210.30, 396,315.45 and 259,836.30

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Solution

The fourth proportional to 264,210.30, 396,315.45 and 259,836.30 is: 389,754.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,210.30 : 396,315.45 = 259,836.30 : x
  2. Step 2: Convert to fraction form
    264,210.30/396,315.45 = 259,836.30/x
  3. Step 3: Cross multiply
    264,210.30x = 396,315.45 × 259,836.30
  4. Step 4: Simplify right side
    264,210.30x = 102,977,140,160.84
  5. Step 5: Solve for x
    x = 102,977,140,160.84/264,210.30
  6. Step 6: Final answer
    x = 389,754.45

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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.