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Finding the Fourth Proportional to 633,441.81, 874,149.84 and 346,972.17

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Solution

The fourth proportional to 633,441.81, 874,149.84 and 346,972.17 is: 478,821.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,441.81 : 874,149.84 = 346,972.17 : x
  2. Step 2: Convert to fraction form
    633,441.81/874,149.84 = 346,972.17/x
  3. Step 3: Cross multiply
    633,441.81x = 874,149.84 × 346,972.17
  4. Step 4: Simplify right side
    633,441.81x = 303,305,666,889.95
  5. Step 5: Solve for x
    x = 303,305,666,889.95/633,441.81
  6. Step 6: Final answer
    x = 478,821.67

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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.