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Finding the Fourth Proportional to 484,313.49, 668,335.80 and 266,501.79

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Solution

The fourth proportional to 484,313.49, 668,335.80 and 266,501.79 is: 367,763.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,313.49 : 668,335.80 = 266,501.79 : x
  2. Step 2: Convert to fraction form
    484,313.49/668,335.80 = 266,501.79/x
  3. Step 3: Cross multiply
    484,313.49x = 668,335.80 × 266,501.79
  4. Step 4: Simplify right side
    484,313.49x = 178,112,687,021.08
  5. Step 5: Solve for x
    x = 178,112,687,021.08/484,313.49
  6. Step 6: Final answer
    x = 367,763.22

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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.