Home / 853,618.70-1,280,048.96-454,175.30

Finding the Fourth Proportional to 853,618.70, 1,280,048.96 and 454,175.30

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Solution

The fourth proportional to 853,618.70, 1,280,048.96 and 454,175.30 is: 681,061.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,618.70 : 1,280,048.96 = 454,175.30 : x
  2. Step 2: Convert to fraction form
    853,618.70/1,280,048.96 = 454,175.30/x
  3. Step 3: Cross multiply
    853,618.70x = 1,280,048.96 × 454,175.30
  4. Step 4: Simplify right side
    853,618.70x = 581,366,615,157.88
  5. Step 5: Solve for x
    x = 581,366,615,157.88/853,618.70
  6. Step 6: Final answer
    x = 681,061.25

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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.