Home / 689,989.19-952,185.17-384,059.07

Finding the Fourth Proportional to 689,989.19, 952,185.17 and 384,059.07

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Solution

The fourth proportional to 689,989.19, 952,185.17 and 384,059.07 is: 530,001.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,989.19 : 952,185.17 = 384,059.07 : x
  2. Step 2: Convert to fraction form
    689,989.19/952,185.17 = 384,059.07/x
  3. Step 3: Cross multiply
    689,989.19x = 952,185.17 × 384,059.07
  4. Step 4: Simplify right side
    689,989.19x = 365,695,351,818.14
  5. Step 5: Solve for x
    x = 365,695,351,818.14/689,989.19
  6. Step 6: Final answer
    x = 530,001.57

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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.