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Finding the Fourth Proportional to 592,559.30, 817,729.57 and 320,627.72

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Solution

The fourth proportional to 592,559.30, 817,729.57 and 320,627.72 is: 442,465.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,559.30 : 817,729.57 = 320,627.72 : x
  2. Step 2: Convert to fraction form
    592,559.30/817,729.57 = 320,627.72/x
  3. Step 3: Cross multiply
    592,559.30x = 817,729.57 × 320,627.72
  4. Step 4: Simplify right side
    592,559.30x = 262,186,761,913.89
  5. Step 5: Solve for x
    x = 262,186,761,913.89/592,559.30
  6. Step 6: Final answer
    x = 442,465.02

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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.