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Finding the Fourth Proportional to 499,597.47, 689,427.45 and 284,806.76

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Solution

The fourth proportional to 499,597.47, 689,427.45 and 284,806.76 is: 393,023.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,597.47 : 689,427.45 = 284,806.76 : x
  2. Step 2: Convert to fraction form
    499,597.47/689,427.45 = 284,806.76/x
  3. Step 3: Cross multiply
    499,597.47x = 689,427.45 × 284,806.76
  4. Step 4: Simplify right side
    499,597.47x = 196,353,594,842.43
  5. Step 5: Solve for x
    x = 196,353,594,842.43/499,597.47
  6. Step 6: Final answer
    x = 393,023.60

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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.