Home / 628,173.02-939,881.72-372,143.03

Finding the Fourth Proportional to 628,173.02, 939,881.72 and 372,143.03

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Solution

The fourth proportional to 628,173.02, 939,881.72 and 372,143.03 is: 556,805.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,173.02 : 939,881.72 = 372,143.03 : x
  2. Step 2: Convert to fraction form
    628,173.02/939,881.72 = 372,143.03/x
  3. Step 3: Cross multiply
    628,173.02x = 939,881.72 × 372,143.03
  4. Step 4: Simplify right side
    628,173.02x = 349,770,429,693.13
  5. Step 5: Solve for x
    x = 349,770,429,693.13/628,173.02
  6. Step 6: Final answer
    x = 556,805.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.