Home / 919,681.38-1,379,506.14-413,884.44

Finding the Fourth Proportional to 919,681.38, 1,379,506.14 and 413,884.44

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Solution

The fourth proportional to 919,681.38, 1,379,506.14 and 413,884.44 is: 620,819.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,681.38 : 1,379,506.14 = 413,884.44 : x
  2. Step 2: Convert to fraction form
    919,681.38/1,379,506.14 = 413,884.44/x
  3. Step 3: Cross multiply
    919,681.38x = 1,379,506.14 × 413,884.44
  4. Step 4: Simplify right side
    919,681.38x = 570,956,126,230.46
  5. Step 5: Solve for x
    x = 570,956,126,230.46/919,681.38
  6. Step 6: Final answer
    x = 620,819.49

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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.