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Finding the Fourth Proportional to 259,658.80, 364,047.20 and 259,658.80

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Solution

The fourth proportional to 259,658.80, 364,047.20 and 259,658.80 is: 364,047.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,658.80 : 364,047.20 = 259,658.80 : x
  2. Step 2: Convert to fraction form
    259,658.80/364,047.20 = 259,658.80/x
  3. Step 3: Cross multiply
    259,658.80x = 364,047.20 × 259,658.80
  4. Step 4: Simplify right side
    259,658.80x = 94,528,059,095.36
  5. Step 5: Solve for x
    x = 94,528,059,095.36/259,658.80
  6. Step 6: Final answer
    x = 364,047.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.