Home / 393,923.76-543,621.24-215,075.76

Finding the Fourth Proportional to 393,923.76, 543,621.24 and 215,075.76

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Solution

The fourth proportional to 393,923.76, 543,621.24 and 215,075.76 is: 296,808.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,923.76 : 543,621.24 = 215,075.76 : x
  2. Step 2: Convert to fraction form
    393,923.76/543,621.24 = 215,075.76/x
  3. Step 3: Cross multiply
    393,923.76x = 543,621.24 × 215,075.76
  4. Step 4: Simplify right side
    393,923.76x = 116,919,751,345.14
  5. Step 5: Solve for x
    x = 116,919,751,345.14/393,923.76
  6. Step 6: Final answer
    x = 296,808.07

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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.