Home / 857,540.63-1,183,407.78-470,359.20

Finding the Fourth Proportional to 857,540.63, 1,183,407.78 and 470,359.20

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Solution

The fourth proportional to 857,540.63, 1,183,407.78 and 470,359.20 is: 649,096.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,540.63 : 1,183,407.78 = 470,359.20 : x
  2. Step 2: Convert to fraction form
    857,540.63/1,183,407.78 = 470,359.20/x
  3. Step 3: Cross multiply
    857,540.63x = 1,183,407.78 × 470,359.20
  4. Step 4: Simplify right side
    857,540.63x = 556,626,736,674.58
  5. Step 5: Solve for x
    x = 556,626,736,674.58/857,540.63
  6. Step 6: Final answer
    x = 649,096.64

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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.