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Finding the Fourth Proportional to 592,881.64, 818,171.82 and 320,944

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Solution

The fourth proportional to 592,881.64, 818,171.82 and 320,944 is: 442,900.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,881.64 : 818,171.82 = 320,944 : x
  2. Step 2: Convert to fraction form
    592,881.64/818,171.82 = 320,944/x
  3. Step 3: Cross multiply
    592,881.64x = 818,171.82 × 320,944
  4. Step 4: Simplify right side
    592,881.64x = 262,587,336,598.08
  5. Step 5: Solve for x
    x = 262,587,336,598.08/592,881.64
  6. Step 6: Final answer
    x = 442,900.10

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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.