Home / 690,016.05-952,221.96-384,085.80

Finding the Fourth Proportional to 690,016.05, 952,221.96 and 384,085.80

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Solution

The fourth proportional to 690,016.05, 952,221.96 and 384,085.80 is: 530,038.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,016.05 : 952,221.96 = 384,085.80 : x
  2. Step 2: Convert to fraction form
    690,016.05/952,221.96 = 384,085.80/x
  3. Step 3: Cross multiply
    690,016.05x = 952,221.96 × 384,085.80
  4. Step 4: Simplify right side
    690,016.05x = 365,734,933,284.17
  5. Step 5: Solve for x
    x = 365,734,933,284.17/690,016.05
  6. Step 6: Final answer
    x = 530,038.30

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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.