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Finding the Fourth Proportional to 592,153.96, 817,172.81 and 320,221.84

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Solution

The fourth proportional to 592,153.96, 817,172.81 and 320,221.84 is: 441,906.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,153.96 : 817,172.81 = 320,221.84 : x
  2. Step 2: Convert to fraction form
    592,153.96/817,172.81 = 320,221.84/x
  3. Step 3: Cross multiply
    592,153.96x = 817,172.81 × 320,221.84
  4. Step 4: Simplify right side
    592,153.96x = 261,676,579,573.79
  5. Step 5: Solve for x
    x = 261,676,579,573.79/592,153.96
  6. Step 6: Final answer
    x = 441,906.33

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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.