Home / 813,905.20-1,220,857.80-601,328.80

Finding the Fourth Proportional to 813,905.20, 1,220,857.80 and 601,328.80

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Solution

The fourth proportional to 813,905.20, 1,220,857.80 and 601,328.80 is: 901,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,905.20 : 1,220,857.80 = 601,328.80 : x
  2. Step 2: Convert to fraction form
    813,905.20/1,220,857.80 = 601,328.80/x
  3. Step 3: Cross multiply
    813,905.20x = 1,220,857.80 × 601,328.80
  4. Step 4: Simplify right side
    813,905.20x = 734,136,955,844.64
  5. Step 5: Solve for x
    x = 734,136,955,844.64/813,905.20
  6. Step 6: Final answer
    x = 901,993.20

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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.