Home / 807,837.28-1,114,820.76-463,581.40

Finding the Fourth Proportional to 807,837.28, 1,114,820.76 and 463,581.40

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Solution

The fourth proportional to 807,837.28, 1,114,820.76 and 463,581.40 is: 639,745.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,837.28 : 1,114,820.76 = 463,581.40 : x
  2. Step 2: Convert to fraction form
    807,837.28/1,114,820.76 = 463,581.40/x
  3. Step 3: Cross multiply
    807,837.28x = 1,114,820.76 × 463,581.40
  4. Step 4: Simplify right side
    807,837.28x = 516,810,168,669.86
  5. Step 5: Solve for x
    x = 516,810,168,669.86/807,837.28
  6. Step 6: Final answer
    x = 639,745.38

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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.