Home / 470,022.14-648,638.38-255,162.20

Finding the Fourth Proportional to 470,022.14, 648,638.38 and 255,162.20

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Solution

The fourth proportional to 470,022.14, 648,638.38 and 255,162.20 is: 352,128.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,022.14 : 648,638.38 = 255,162.20 : x
  2. Step 2: Convert to fraction form
    470,022.14/648,638.38 = 255,162.20/x
  3. Step 3: Cross multiply
    470,022.14x = 648,638.38 × 255,162.20
  4. Step 4: Simplify right side
    470,022.14x = 165,507,996,769.59
  5. Step 5: Solve for x
    x = 165,507,996,769.59/470,022.14
  6. Step 6: Final answer
    x = 352,128.08

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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.