Home / 919,127.80-1,379,814.90-520,046.20

Finding the Fourth Proportional to 919,127.80, 1,379,814.90 and 520,046.20

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Solution

The fourth proportional to 919,127.80, 1,379,814.90 and 520,046.20 is: 780,704.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,127.80 : 1,379,814.90 = 520,046.20 : x
  2. Step 2: Convert to fraction form
    919,127.80/1,379,814.90 = 520,046.20/x
  3. Step 3: Cross multiply
    919,127.80x = 1,379,814.90 × 520,046.20
  4. Step 4: Simplify right side
    919,127.80x = 717,567,495,448.38
  5. Step 5: Solve for x
    x = 717,567,495,448.38/919,127.80
  6. Step 6: Final answer
    x = 780,704.81

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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.