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Finding the Fourth Proportional to 489,237.20, 733,855.80 and 470,574.80

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Solution

The fourth proportional to 489,237.20, 733,855.80 and 470,574.80 is: 705,862.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,237.20 : 733,855.80 = 470,574.80 : x
  2. Step 2: Convert to fraction form
    489,237.20/733,855.80 = 470,574.80/x
  3. Step 3: Cross multiply
    489,237.20x = 733,855.80 × 470,574.80
  4. Step 4: Simplify right side
    489,237.20x = 345,334,046,313.84
  5. Step 5: Solve for x
    x = 345,334,046,313.84/489,237.20
  6. Step 6: Final answer
    x = 705,862.20

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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.