Home / 645,704.93-968,409.47-190,178.35

Finding the Fourth Proportional to 645,704.93, 968,409.47 and 190,178.35

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Solution

The fourth proportional to 645,704.93, 968,409.47 and 190,178.35 is: 285,223.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,704.93 : 968,409.47 = 190,178.35 : x
  2. Step 2: Convert to fraction form
    645,704.93/968,409.47 = 190,178.35/x
  3. Step 3: Cross multiply
    645,704.93x = 968,409.47 × 190,178.35
  4. Step 4: Simplify right side
    645,704.93x = 184,170,513,183.40
  5. Step 5: Solve for x
    x = 184,170,513,183.40/645,704.93
  6. Step 6: Final answer
    x = 285,223.95

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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.