Home / 853,659.93-1,280,628.87-398,706.12

Finding the Fourth Proportional to 853,659.93, 1,280,628.87 and 398,706.12

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Solution

The fourth proportional to 853,659.93, 1,280,628.87 and 398,706.12 is: 598,124.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,659.93 : 1,280,628.87 = 398,706.12 : x
  2. Step 2: Convert to fraction form
    853,659.93/1,280,628.87 = 398,706.12/x
  3. Step 3: Cross multiply
    853,659.93x = 1,280,628.87 × 398,706.12
  4. Step 4: Simplify right side
    853,659.93x = 510,594,559,521.01
  5. Step 5: Solve for x
    x = 510,594,559,521.01/853,659.93
  6. Step 6: Final answer
    x = 598,124.08

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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.