Home / 919,236.01-1,378,854.42-288,199.03

Finding the Fourth Proportional to 919,236.01, 1,378,854.42 and 288,199.03

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Solution

The fourth proportional to 919,236.01, 1,378,854.42 and 288,199.03 is: 432,298.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,236.01 : 1,378,854.42 = 288,199.03 : x
  2. Step 2: Convert to fraction form
    919,236.01/1,378,854.42 = 288,199.03/x
  3. Step 3: Cross multiply
    919,236.01x = 1,378,854.42 × 288,199.03
  4. Step 4: Simplify right side
    919,236.01x = 397,384,506,355.21
  5. Step 5: Solve for x
    x = 397,384,506,355.21/919,236.01
  6. Step 6: Final answer
    x = 432,298.67

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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.