Home / 919,195.40-1,378,793.10-877,861.10

Finding the Fourth Proportional to 919,195.40, 1,378,793.10 and 877,861.10

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Solution

The fourth proportional to 919,195.40, 1,378,793.10 and 877,861.10 is: 1,316,791.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,195.40 : 1,378,793.10 = 877,861.10 : x
  2. Step 2: Convert to fraction form
    919,195.40/1,378,793.10 = 877,861.10/x
  3. Step 3: Cross multiply
    919,195.40x = 1,378,793.10 × 877,861.10
  4. Step 4: Simplify right side
    919,195.40x = 1,210,388,827,438.41
  5. Step 5: Solve for x
    x = 1,210,388,827,438.41/919,195.40
  6. Step 6: Final answer
    x = 1,316,791.65

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Double scale
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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.