Home / 403,621.54-557,000.56-231,547.01

Finding the Fourth Proportional to 403,621.54, 557,000.56 and 231,547.01

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Solution

The fourth proportional to 403,621.54, 557,000.56 and 231,547.01 is: 319,536.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,621.54 : 557,000.56 = 231,547.01 : x
  2. Step 2: Convert to fraction form
    403,621.54/557,000.56 = 231,547.01/x
  3. Step 3: Cross multiply
    403,621.54x = 557,000.56 × 231,547.01
  4. Step 4: Simplify right side
    403,621.54x = 128,971,814,236.33
  5. Step 5: Solve for x
    x = 128,971,814,236.33/403,621.54
  6. Step 6: Final answer
    x = 319,536.50

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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.