Home / 384,895.03-531,133.70-212,803.04

Finding the Fourth Proportional to 384,895.03, 531,133.70 and 212,803.04

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Solution

The fourth proportional to 384,895.03, 531,133.70 and 212,803.04 is: 293,656.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,895.03 : 531,133.70 = 212,803.04 : x
  2. Step 2: Convert to fraction form
    384,895.03/531,133.70 = 212,803.04/x
  3. Step 3: Cross multiply
    384,895.03x = 531,133.70 × 212,803.04
  4. Step 4: Simplify right side
    384,895.03x = 113,026,863,882.79
  5. Step 5: Solve for x
    x = 113,026,863,882.79/384,895.03
  6. Step 6: Final answer
    x = 293,656.34

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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.