Home / 483,128.75-666,779.18-292,143.51

Finding the Fourth Proportional to 483,128.75, 666,779.18 and 292,143.51

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Solution

The fourth proportional to 483,128.75, 666,779.18 and 292,143.51 is: 403,195.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,128.75 : 666,779.18 = 292,143.51 : x
  2. Step 2: Convert to fraction form
    483,128.75/666,779.18 = 292,143.51/x
  3. Step 3: Cross multiply
    483,128.75x = 666,779.18 × 292,143.51
  4. Step 4: Simplify right side
    483,128.75x = 194,795,208,579.40
  5. Step 5: Solve for x
    x = 194,795,208,579.40/483,128.75
  6. Step 6: Final answer
    x = 403,195.23

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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.