Home / 579,693.62-799,976.46-321,609.72

Finding the Fourth Proportional to 579,693.62, 799,976.46 and 321,609.72

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Solution

The fourth proportional to 579,693.62, 799,976.46 and 321,609.72 is: 443,821.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,693.62 : 799,976.46 = 321,609.72 : x
  2. Step 2: Convert to fraction form
    579,693.62/799,976.46 = 321,609.72/x
  3. Step 3: Cross multiply
    579,693.62x = 799,976.46 × 321,609.72
  4. Step 4: Simplify right side
    579,693.62x = 257,280,205,307.19
  5. Step 5: Solve for x
    x = 257,280,205,307.19/579,693.62
  6. Step 6: Final answer
    x = 443,821.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.