Home / 690,378.06-952,661.07-384,431.34

Finding the Fourth Proportional to 690,378.06, 952,661.07 and 384,431.34

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Solution

The fourth proportional to 690,378.06, 952,661.07 and 384,431.34 is: 530,481.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,378.06 : 952,661.07 = 384,431.34 : x
  2. Step 2: Convert to fraction form
    690,378.06/952,661.07 = 384,431.34/x
  3. Step 3: Cross multiply
    690,378.06x = 952,661.07 × 384,431.34
  4. Step 4: Simplify right side
    690,378.06x = 366,232,771,705.93
  5. Step 5: Solve for x
    x = 366,232,771,705.93/690,378.06
  6. Step 6: Final answer
    x = 530,481.48

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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.