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Finding the Fourth Proportional to 622,825.61, 859,499.33 and 336,345.67

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Solution

The fourth proportional to 622,825.61, 859,499.33 and 336,345.67 is: 464,157.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,825.61 : 859,499.33 = 336,345.67 : x
  2. Step 2: Convert to fraction form
    622,825.61/859,499.33 = 336,345.67/x
  3. Step 3: Cross multiply
    622,825.61x = 859,499.33 × 336,345.67
  4. Step 4: Simplify right side
    622,825.61x = 289,088,873,715.90
  5. Step 5: Solve for x
    x = 289,088,873,715.90/622,825.61
  6. Step 6: Final answer
    x = 464,157.01

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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.