Home / 403,676.07-605,303.88-190,386.72

Finding the Fourth Proportional to 403,676.07, 605,303.88 and 190,386.72

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Solution

The fourth proportional to 403,676.07, 605,303.88 and 190,386.72 is: 285,480.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,676.07 : 605,303.88 = 190,386.72 : x
  2. Step 2: Convert to fraction form
    403,676.07/605,303.88 = 190,386.72/x
  3. Step 3: Cross multiply
    403,676.07x = 605,303.88 × 190,386.72
  4. Step 4: Simplify right side
    403,676.07x = 115,241,820,316.47
  5. Step 5: Solve for x
    x = 115,241,820,316.47/403,676.07
  6. Step 6: Final answer
    x = 285,480.93

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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.