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Finding the Fourth Proportional to 608,575.94, 839,552.01 and 393,785.28

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Solution

The fourth proportional to 608,575.94, 839,552.01 and 393,785.28 is: 543,240.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,575.94 : 839,552.01 = 393,785.28 : x
  2. Step 2: Convert to fraction form
    608,575.94/839,552.01 = 393,785.28/x
  3. Step 3: Cross multiply
    608,575.94x = 839,552.01 × 393,785.28
  4. Step 4: Simplify right side
    608,575.94x = 330,603,223,332.41
  5. Step 5: Solve for x
    x = 330,603,223,332.41/608,575.94
  6. Step 6: Final answer
    x = 543,240.71

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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.