Home / 384,541.36-530,664.06-223,490.68

Finding the Fourth Proportional to 384,541.36, 530,664.06 and 223,490.68

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Solution

The fourth proportional to 384,541.36, 530,664.06 and 223,490.68 is: 308,415.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,541.36 : 530,664.06 = 223,490.68 : x
  2. Step 2: Convert to fraction form
    384,541.36/530,664.06 = 223,490.68/x
  3. Step 3: Cross multiply
    384,541.36x = 530,664.06 × 223,490.68
  4. Step 4: Simplify right side
    384,541.36x = 118,598,471,620.96
  5. Step 5: Solve for x
    x = 118,598,471,620.96/384,541.36
  6. Step 6: Final answer
    x = 308,415.39

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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.