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Finding the Fourth Proportional to 489,885.10, 734,136.45 and 240,016.30

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Solution

The fourth proportional to 489,885.10, 734,136.45 and 240,016.30 is: 359,685.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,885.10 : 734,136.45 = 240,016.30 : x
  2. Step 2: Convert to fraction form
    489,885.10/734,136.45 = 240,016.30/x
  3. Step 3: Cross multiply
    489,885.10x = 734,136.45 × 240,016.30
  4. Step 4: Simplify right side
    489,885.10x = 176,204,714,424.14
  5. Step 5: Solve for x
    x = 176,204,714,424.14/489,885.10
  6. Step 6: Final answer
    x = 359,685.80

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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.