Home / 608,574.94-839,550.63-393,784.28

Finding the Fourth Proportional to 608,574.94, 839,550.63 and 393,784.28

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Solution

The fourth proportional to 608,574.94, 839,550.63 and 393,784.28 is: 543,239.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,574.94 : 839,550.63 = 393,784.28 : x
  2. Step 2: Convert to fraction form
    608,574.94/839,550.63 = 393,784.28/x
  3. Step 3: Cross multiply
    608,574.94x = 839,550.63 × 393,784.28
  4. Step 4: Simplify right side
    608,574.94x = 330,601,840,358.10
  5. Step 5: Solve for x
    x = 330,601,840,358.10/608,574.94
  6. Step 6: Final answer
    x = 543,239.33

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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.