Home / 403,644.13-556,987.05-248,570.78

Finding the Fourth Proportional to 403,644.13, 556,987.05 and 248,570.78

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Solution

The fourth proportional to 403,644.13, 556,987.05 and 248,570.78 is: 343,001.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,644.13 : 556,987.05 = 248,570.78 : x
  2. Step 2: Convert to fraction form
    403,644.13/556,987.05 = 248,570.78/x
  3. Step 3: Cross multiply
    403,644.13x = 556,987.05 × 248,570.78
  4. Step 4: Simplify right side
    403,644.13x = 138,450,702,683.46
  5. Step 5: Solve for x
    x = 138,450,702,683.46/403,644.13
  6. Step 6: Final answer
    x = 343,001.90

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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.