Home / 784,316.88-1,082,293.80-440,105.76

Finding the Fourth Proportional to 784,316.88, 1,082,293.80 and 440,105.76

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Solution

The fourth proportional to 784,316.88, 1,082,293.80 and 440,105.76 is: 607,310.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,316.88 : 1,082,293.80 = 440,105.76 : x
  2. Step 2: Convert to fraction form
    784,316.88/1,082,293.80 = 440,105.76/x
  3. Step 3: Cross multiply
    784,316.88x = 1,082,293.80 × 440,105.76
  4. Step 4: Simplify right side
    784,316.88x = 476,323,735,392.29
  5. Step 5: Solve for x
    x = 476,323,735,392.29/784,316.88
  6. Step 6: Final answer
    x = 607,310.32

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.