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Finding the Fourth Proportional to 470,970.68, 649,956.63 and 269,805.56

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Solution

The fourth proportional to 470,970.68, 649,956.63 and 269,805.56 is: 372,341.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,970.68 : 649,956.63 = 269,805.56 : x
  2. Step 2: Convert to fraction form
    470,970.68/649,956.63 = 269,805.56/x
  3. Step 3: Cross multiply
    470,970.68x = 649,956.63 × 269,805.56
  4. Step 4: Simplify right side
    470,970.68x = 175,361,909,283.08
  5. Step 5: Solve for x
    x = 175,361,909,283.08/470,970.68
  6. Step 6: Final answer
    x = 372,341.46

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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.