Home / 807,707.63-1,114,640.96-463,516.19

Finding the Fourth Proportional to 807,707.63, 1,114,640.96 and 463,516.19

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Solution

The fourth proportional to 807,707.63, 1,114,640.96 and 463,516.19 is: 639,654.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,707.63 : 1,114,640.96 = 463,516.19 : x
  2. Step 2: Convert to fraction form
    807,707.63/1,114,640.96 = 463,516.19/x
  3. Step 3: Cross multiply
    807,707.63x = 1,114,640.96 × 463,516.19
  4. Step 4: Simplify right side
    807,707.63x = 516,654,128,679.56
  5. Step 5: Solve for x
    x = 516,654,128,679.56/807,707.63
  6. Step 6: Final answer
    x = 639,654.88

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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.