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Finding the Fourth Proportional to 359,438.40, 496,020.30 and 198,300.24

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Solution

The fourth proportional to 359,438.40, 496,020.30 and 198,300.24 is: 273,651.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,438.40 : 496,020.30 = 198,300.24 : x
  2. Step 2: Convert to fraction form
    359,438.40/496,020.30 = 198,300.24/x
  3. Step 3: Cross multiply
    359,438.40x = 496,020.30 × 198,300.24
  4. Step 4: Simplify right side
    359,438.40x = 98,360,944,534.87
  5. Step 5: Solve for x
    x = 98,360,944,534.87/359,438.40
  6. Step 6: Final answer
    x = 273,651.74

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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.