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Finding the Fourth Proportional to 437,289.80, 655,934.70 and 297,321.80

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Solution

The fourth proportional to 437,289.80, 655,934.70 and 297,321.80 is: 445,982.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,289.80 : 655,934.70 = 297,321.80 : x
  2. Step 2: Convert to fraction form
    437,289.80/655,934.70 = 297,321.80/x
  3. Step 3: Cross multiply
    437,289.80x = 655,934.70 × 297,321.80
  4. Step 4: Simplify right side
    437,289.80x = 195,023,685,686.46
  5. Step 5: Solve for x
    x = 195,023,685,686.46/437,289.80
  6. Step 6: Final answer
    x = 445,982.70

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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.