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Finding the Fourth Proportional to 457,017.68, 630,684.00 and 253,068.59

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Solution

The fourth proportional to 457,017.68, 630,684.00 and 253,068.59 is: 349,234.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,017.68 : 630,684.00 = 253,068.59 : x
  2. Step 2: Convert to fraction form
    457,017.68/630,684.00 = 253,068.59/x
  3. Step 3: Cross multiply
    457,017.68x = 630,684.00 × 253,068.59
  4. Step 4: Simplify right side
    457,017.68x = 159,606,307,932.92
  5. Step 5: Solve for x
    x = 159,606,307,932.92/457,017.68
  6. Step 6: Final answer
    x = 349,234.43

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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.