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Finding the Fourth Proportional to 260,021.70, 364,521.90 and 260,021.70

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Solution

The fourth proportional to 260,021.70, 364,521.90 and 260,021.70 is: 364,521.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,021.70 : 364,521.90 = 260,021.70 : x
  2. Step 2: Convert to fraction form
    260,021.70/364,521.90 = 260,021.70/x
  3. Step 3: Cross multiply
    260,021.70x = 364,521.90 × 260,021.70
  4. Step 4: Simplify right side
    260,021.70x = 94,783,604,125.23
  5. Step 5: Solve for x
    x = 94,783,604,125.23/260,021.70
  6. Step 6: Final answer
    x = 364,521.90

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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.