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Finding the Fourth Proportional to 456,643.77, 630,158.96 and 252,694.55

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Solution

The fourth proportional to 456,643.77, 630,158.96 and 252,694.55 is: 348,713.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,643.77 : 630,158.96 = 252,694.55 : x
  2. Step 2: Convert to fraction form
    456,643.77/630,158.96 = 252,694.55/x
  3. Step 3: Cross multiply
    456,643.77x = 630,158.96 × 252,694.55
  4. Step 4: Simplify right side
    456,643.77x = 159,237,734,825.67
  5. Step 5: Solve for x
    x = 159,237,734,825.67/456,643.77
  6. Step 6: Final answer
    x = 348,713.25

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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.