Home / 500,528.74-690,853.26-285,793.36

Finding the Fourth Proportional to 500,528.74, 690,853.26 and 285,793.36

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Solution

The fourth proportional to 500,528.74, 690,853.26 and 285,793.36 is: 394,465.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,528.74 : 690,853.26 = 285,793.36 : x
  2. Step 2: Convert to fraction form
    500,528.74/690,853.26 = 285,793.36/x
  3. Step 3: Cross multiply
    500,528.74x = 690,853.26 × 285,793.36
  4. Step 4: Simplify right side
    500,528.74x = 197,441,274,442.35
  5. Step 5: Solve for x
    x = 197,441,274,442.35/500,528.74
  6. Step 6: Final answer
    x = 394,465.41

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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.