Home / 931,819.59-1,397,498.54-399,280.23

Finding the Fourth Proportional to 931,819.59, 1,397,498.54 and 399,280.23

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Solution

The fourth proportional to 931,819.59, 1,397,498.54 and 399,280.23 is: 598,821.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,819.59 : 1,397,498.54 = 399,280.23 : x
  2. Step 2: Convert to fraction form
    931,819.59/1,397,498.54 = 399,280.23/x
  3. Step 3: Cross multiply
    931,819.59x = 1,397,498.54 × 399,280.23
  4. Step 4: Simplify right side
    931,819.59x = 557,993,536,479.46
  5. Step 5: Solve for x
    x = 557,993,536,479.46/931,819.59
  6. Step 6: Final answer
    x = 598,821.43

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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.