Home / 891,405.09-1,336,976.24-292,429.53

Finding the Fourth Proportional to 891,405.09, 1,336,976.24 and 292,429.53

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Solution

The fourth proportional to 891,405.09, 1,336,976.24 and 292,429.53 is: 438,601.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,405.09 : 1,336,976.24 = 292,429.53 : x
  2. Step 2: Convert to fraction form
    891,405.09/1,336,976.24 = 292,429.53/x
  3. Step 3: Cross multiply
    891,405.09x = 1,336,976.24 × 292,429.53
  4. Step 4: Simplify right side
    891,405.09x = 390,971,332,022.22
  5. Step 5: Solve for x
    x = 390,971,332,022.22/891,405.09
  6. Step 6: Final answer
    x = 438,601.19

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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.