Home / 379,770.85-524,073.40-209,999.17

Finding the Fourth Proportional to 379,770.85, 524,073.40 and 209,999.17

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Solution

The fourth proportional to 379,770.85, 524,073.40 and 209,999.17 is: 289,793.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,770.85 : 524,073.40 = 209,999.17 : x
  2. Step 2: Convert to fraction form
    379,770.85/524,073.40 = 209,999.17/x
  3. Step 3: Cross multiply
    379,770.85x = 524,073.40 × 209,999.17
  4. Step 4: Simplify right side
    379,770.85x = 110,054,979,019.08
  5. Step 5: Solve for x
    x = 110,054,979,019.08/379,770.85
  6. Step 6: Final answer
    x = 289,793.12

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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.