Home / 936,880.40-1,405,110.20-430,955.41

Finding the Fourth Proportional to 936,880.40, 1,405,110.20 and 430,955.41

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Solution

The fourth proportional to 936,880.40, 1,405,110.20 and 430,955.41 is: 646,336.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,880.40 : 1,405,110.20 = 430,955.41 : x
  2. Step 2: Convert to fraction form
    936,880.40/1,405,110.20 = 430,955.41/x
  3. Step 3: Cross multiply
    936,880.40x = 1,405,110.20 × 430,955.41
  4. Step 4: Simplify right side
    936,880.40x = 605,539,842,336.18
  5. Step 5: Solve for x
    x = 605,539,842,336.18/936,880.40
  6. Step 6: Final answer
    x = 646,336.33

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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.