Home / 919,200.70-1,377,160.80-444,840.40

Finding the Fourth Proportional to 919,200.70, 1,377,160.80 and 444,840.40

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Solution

The fourth proportional to 919,200.70, 1,377,160.80 and 444,840.40 is: 666,466.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,200.70 : 1,377,160.80 = 444,840.40 : x
  2. Step 2: Convert to fraction form
    919,200.70/1,377,160.80 = 444,840.40/x
  3. Step 3: Cross multiply
    919,200.70x = 1,377,160.80 × 444,840.40
  4. Step 4: Simplify right side
    919,200.70x = 612,616,761,136.32
  5. Step 5: Solve for x
    x = 612,616,761,136.32/919,200.70
  6. Step 6: Final answer
    x = 666,466.81

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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.