Home / 636,619.20-954,928.80-193,329.60

Finding the Fourth Proportional to 636,619.20, 954,928.80 and 193,329.60

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Solution

The fourth proportional to 636,619.20, 954,928.80 and 193,329.60 is: 289,994.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,619.20 : 954,928.80 = 193,329.60 : x
  2. Step 2: Convert to fraction form
    636,619.20/954,928.80 = 193,329.60/x
  3. Step 3: Cross multiply
    636,619.20x = 954,928.80 × 193,329.60
  4. Step 4: Simplify right side
    636,619.20x = 184,616,002,932.48
  5. Step 5: Solve for x
    x = 184,616,002,932.48/636,619.20
  6. Step 6: Final answer
    x = 289,994.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.