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Finding the Fourth Proportional to 489,073.80, 733,610.70 and 370,975.80

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Solution

The fourth proportional to 489,073.80, 733,610.70 and 370,975.80 is: 556,463.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,073.80 : 733,610.70 = 370,975.80 : x
  2. Step 2: Convert to fraction form
    489,073.80/733,610.70 = 370,975.80/x
  3. Step 3: Cross multiply
    489,073.80x = 733,610.70 × 370,975.80
  4. Step 4: Simplify right side
    489,073.80x = 272,151,816,321.06
  5. Step 5: Solve for x
    x = 272,151,816,321.06/489,073.80
  6. Step 6: Final answer
    x = 556,463.70

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1.5x scale

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.