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Finding the Fourth Proportional to 683,775.81, 943,608.29 and 377,843.67

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Solution

The fourth proportional to 683,775.81, 943,608.29 and 377,843.67 is: 521,422.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,775.81 : 943,608.29 = 377,843.67 : x
  2. Step 2: Convert to fraction form
    683,775.81/943,608.29 = 377,843.67/x
  3. Step 3: Cross multiply
    683,775.81x = 943,608.29 × 377,843.67
  4. Step 4: Simplify right side
    683,775.81x = 356,536,417,446.81
  5. Step 5: Solve for x
    x = 356,536,417,446.81/683,775.81
  6. Step 6: Final answer
    x = 521,422.98

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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.