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Finding the Fourth Proportional to 326,356.48, 489,476.48 and 207,675.52

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Solution

The fourth proportional to 326,356.48, 489,476.48 and 207,675.52 is: 311,476.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,356.48 : 489,476.48 = 207,675.52 : x
  2. Step 2: Convert to fraction form
    326,356.48/489,476.48 = 207,675.52/x
  3. Step 3: Cross multiply
    326,356.48x = 489,476.48 × 207,675.52
  4. Step 4: Simplify right side
    326,356.48x = 101,652,282,511.77
  5. Step 5: Solve for x
    x = 101,652,282,511.77/326,356.48
  6. Step 6: Final answer
    x = 311,476.22

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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.