Home / 958,353.90-1,322,953.47-618,987.66

Finding the Fourth Proportional to 958,353.90, 1,322,953.47 and 618,987.66

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Solution

The fourth proportional to 958,353.90, 1,322,953.47 and 618,987.66 is: 854,477.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,353.90 : 1,322,953.47 = 618,987.66 : x
  2. Step 2: Convert to fraction form
    958,353.90/1,322,953.47 = 618,987.66/x
  3. Step 3: Cross multiply
    958,353.90x = 1,322,953.47 × 618,987.66
  4. Step 4: Simplify right side
    958,353.90x = 818,891,872,684.18
  5. Step 5: Solve for x
    x = 818,891,872,684.18/958,353.90
  6. Step 6: Final answer
    x = 854,477.53

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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.