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Finding the Fourth Proportional to 489,111.10, 733,666.65 and 355,266.70

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Solution

The fourth proportional to 489,111.10, 733,666.65 and 355,266.70 is: 532,900.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,111.10 : 733,666.65 = 355,266.70 : x
  2. Step 2: Convert to fraction form
    489,111.10/733,666.65 = 355,266.70/x
  3. Step 3: Cross multiply
    489,111.10x = 733,666.65 × 355,266.70
  4. Step 4: Simplify right side
    489,111.10x = 260,647,329,645.56
  5. Step 5: Solve for x
    x = 260,647,329,645.56/489,111.10
  6. Step 6: Final answer
    x = 532,900.05

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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.