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Finding the Fourth Proportional to 637,195.87, 879,323.43 and 350,709.76

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Solution

The fourth proportional to 637,195.87, 879,323.43 and 350,709.76 is: 483,975.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,195.87 : 879,323.43 = 350,709.76 : x
  2. Step 2: Convert to fraction form
    637,195.87/879,323.43 = 350,709.76/x
  3. Step 3: Cross multiply
    637,195.87x = 879,323.43 × 350,709.76
  4. Step 4: Simplify right side
    637,195.87x = 308,387,309,097.68
  5. Step 5: Solve for x
    x = 308,387,309,097.68/637,195.87
  6. Step 6: Final answer
    x = 483,975.69

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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.