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Finding the Fourth Proportional to 470,210.67, 648,903.60 and 276,632.01

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Solution

The fourth proportional to 470,210.67, 648,903.60 and 276,632.01 is: 381,759.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,210.67 : 648,903.60 = 276,632.01 : x
  2. Step 2: Convert to fraction form
    470,210.67/648,903.60 = 276,632.01/x
  3. Step 3: Cross multiply
    470,210.67x = 648,903.60 × 276,632.01
  4. Step 4: Simplify right side
    470,210.67x = 179,507,507,164.24
  5. Step 5: Solve for x
    x = 179,507,507,164.24/470,210.67
  6. Step 6: Final answer
    x = 381,759.75

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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.