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Finding the Fourth Proportional to 289,045.80, 433,568.70 and 275,923.80

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Solution

The fourth proportional to 289,045.80, 433,568.70 and 275,923.80 is: 413,885.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,045.80 : 433,568.70 = 275,923.80 : x
  2. Step 2: Convert to fraction form
    289,045.80/433,568.70 = 275,923.80/x
  3. Step 3: Cross multiply
    289,045.80x = 433,568.70 × 275,923.80
  4. Step 4: Simplify right side
    289,045.80x = 119,631,923,265.06
  5. Step 5: Solve for x
    x = 119,631,923,265.06/289,045.80
  6. Step 6: Final answer
    x = 413,885.70

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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.