Home / 463,922.11-640,180.16-257,188.45

Finding the Fourth Proportional to 463,922.11, 640,180.16 and 257,188.45

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Solution

The fourth proportional to 463,922.11, 640,180.16 and 257,188.45 is: 354,902.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,922.11 : 640,180.16 = 257,188.45 : x
  2. Step 2: Convert to fraction form
    463,922.11/640,180.16 = 257,188.45/x
  3. Step 3: Cross multiply
    463,922.11x = 640,180.16 × 257,188.45
  4. Step 4: Simplify right side
    463,922.11x = 164,646,943,714.12
  5. Step 5: Solve for x
    x = 164,646,943,714.12/463,922.11
  6. Step 6: Final answer
    x = 354,902.13

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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.