Home / 399,701.07-551,585.39-236,416.01

Finding the Fourth Proportional to 399,701.07, 551,585.39 and 236,416.01

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Solution

The fourth proportional to 399,701.07, 551,585.39 and 236,416.01 is: 326,252.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,701.07 : 551,585.39 = 236,416.01 : x
  2. Step 2: Convert to fraction form
    399,701.07/551,585.39 = 236,416.01/x
  3. Step 3: Cross multiply
    399,701.07x = 551,585.39 × 236,416.01
  4. Step 4: Simplify right side
    399,701.07x = 130,403,613,138.09
  5. Step 5: Solve for x
    x = 130,403,613,138.09/399,701.07
  6. Step 6: Final answer
    x = 326,252.85

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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.