Home / 384,738.63-530,940.97-210,312.39

Finding the Fourth Proportional to 384,738.63, 530,940.97 and 210,312.39

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Solution

The fourth proportional to 384,738.63, 530,940.97 and 210,312.39 is: 290,232.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,738.63 : 530,940.97 = 210,312.39 : x
  2. Step 2: Convert to fraction form
    384,738.63/530,940.97 = 210,312.39/x
  3. Step 3: Cross multiply
    384,738.63x = 530,940.97 × 210,312.39
  4. Step 4: Simplify right side
    384,738.63x = 111,663,464,349.62
  5. Step 5: Solve for x
    x = 111,663,464,349.62/384,738.63
  6. Step 6: Final answer
    x = 290,232.01

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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.