Home / 688,636.28-1,033,013.88-190,000.28

Finding the Fourth Proportional to 688,636.28, 1,033,013.88 and 190,000.28

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Solution

The fourth proportional to 688,636.28, 1,033,013.88 and 190,000.28 is: 285,016.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,636.28 : 1,033,013.88 = 190,000.28 : x
  2. Step 2: Convert to fraction form
    688,636.28/1,033,013.88 = 190,000.28/x
  3. Step 3: Cross multiply
    688,636.28x = 1,033,013.88 × 190,000.28
  4. Step 4: Simplify right side
    688,636.28x = 196,272,926,443.89
  5. Step 5: Solve for x
    x = 196,272,926,443.89/688,636.28
  6. Step 6: Final answer
    x = 285,016.83

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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.