Home / 931,093.36-1,396,612.40-257,215.20

Finding the Fourth Proportional to 931,093.36, 1,396,612.40 and 257,215.20

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Solution

The fourth proportional to 931,093.36, 1,396,612.40 and 257,215.20 is: 385,815.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,093.36 : 1,396,612.40 = 257,215.20 : x
  2. Step 2: Convert to fraction form
    931,093.36/1,396,612.40 = 257,215.20/x
  3. Step 3: Cross multiply
    931,093.36x = 1,396,612.40 × 257,215.20
  4. Step 4: Simplify right side
    931,093.36x = 359,229,937,788.48
  5. Step 5: Solve for x
    x = 359,229,937,788.48/931,093.36
  6. Step 6: Final answer
    x = 385,815.16

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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.