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Finding the Fourth Proportional to 548,047.99, 756,275.67 and 303,018.57

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Solution

The fourth proportional to 548,047.99, 756,275.67 and 303,018.57 is: 418,148.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,047.99 : 756,275.67 = 303,018.57 : x
  2. Step 2: Convert to fraction form
    548,047.99/756,275.67 = 303,018.57/x
  3. Step 3: Cross multiply
    548,047.99x = 756,275.67 × 303,018.57
  4. Step 4: Simplify right side
    548,047.99x = 229,165,568,267.81
  5. Step 5: Solve for x
    x = 229,165,568,267.81/548,047.99
  6. Step 6: Final answer
    x = 418,148.73

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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.