Home / 688,619.20-1,032,928.80-239,190.70

Finding the Fourth Proportional to 688,619.20, 1,032,928.80 and 239,190.70

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Solution

The fourth proportional to 688,619.20, 1,032,928.80 and 239,190.70 is: 358,786.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,619.20 : 1,032,928.80 = 239,190.70 : x
  2. Step 2: Convert to fraction form
    688,619.20/1,032,928.80 = 239,190.70/x
  3. Step 3: Cross multiply
    688,619.20x = 1,032,928.80 × 239,190.70
  4. Step 4: Simplify right side
    688,619.20x = 247,066,962,722.16
  5. Step 5: Solve for x
    x = 247,066,962,722.16/688,619.20
  6. Step 6: Final answer
    x = 358,786.05

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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.