Home / 919,968.80-1,379,953.20-470,540.30

Finding the Fourth Proportional to 919,968.80, 1,379,953.20 and 470,540.30

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Solution

The fourth proportional to 919,968.80, 1,379,953.20 and 470,540.30 is: 705,810.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,968.80 : 1,379,953.20 = 470,540.30 : x
  2. Step 2: Convert to fraction form
    919,968.80/1,379,953.20 = 470,540.30/x
  3. Step 3: Cross multiply
    919,968.80x = 1,379,953.20 × 470,540.30
  4. Step 4: Simplify right side
    919,968.80x = 649,323,592,713.96
  5. Step 5: Solve for x
    x = 649,323,592,713.96/919,968.80
  6. Step 6: Final answer
    x = 705,810.45

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Similar ratio
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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.