Home / 950,811.60-1,312,112.48-521,090.72

Finding the Fourth Proportional to 950,811.60, 1,312,112.48 and 521,090.72

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Solution

The fourth proportional to 950,811.60, 1,312,112.48 and 521,090.72 is: 719,101.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    950,811.60 : 1,312,112.48 = 521,090.72 : x
  2. Step 2: Convert to fraction form
    950,811.60/1,312,112.48 = 521,090.72/x
  3. Step 3: Cross multiply
    950,811.60x = 1,312,112.48 × 521,090.72
  4. Step 4: Simplify right side
    950,811.60x = 683,729,627,758.17
  5. Step 5: Solve for x
    x = 683,729,627,758.17/950,811.60
  6. Step 6: Final answer
    x = 719,101.06

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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.