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Finding the Fourth Proportional to 496,953.30, 745,527.15 and 212,643.30

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Solution

The fourth proportional to 496,953.30, 745,527.15 and 212,643.30 is: 319,006.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,953.30 : 745,527.15 = 212,643.30 : x
  2. Step 2: Convert to fraction form
    496,953.30/745,527.15 = 212,643.30/x
  3. Step 3: Cross multiply
    496,953.30x = 745,527.15 × 212,643.30
  4. Step 4: Simplify right side
    496,953.30x = 158,531,353,415.60
  5. Step 5: Solve for x
    x = 158,531,353,415.60/496,953.30
  6. Step 6: Final answer
    x = 319,006.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.