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Finding the Fourth Proportional to 622,826.10, 859,500 and 336,346.16

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Solution

The fourth proportional to 622,826.10, 859,500 and 336,346.16 is: 464,157.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,826.10 : 859,500 = 336,346.16 : x
  2. Step 2: Convert to fraction form
    622,826.10/859,500 = 336,346.16/x
  3. Step 3: Cross multiply
    622,826.10x = 859,500 × 336,346.16
  4. Step 4: Simplify right side
    622,826.10x = 289,089,520,222.50
  5. Step 5: Solve for x
    x = 289,089,520,222.50/622,826.10
  6. Step 6: Final answer
    x = 464,157.68

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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.