Home / 877,682.60-1,315,465.50-403,718.12

Finding the Fourth Proportional to 877,682.60, 1,315,465.50 and 403,718.12

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Solution

The fourth proportional to 877,682.60, 1,315,465.50 and 403,718.12 is: 605,090.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,682.60 : 1,315,465.50 = 403,718.12 : x
  2. Step 2: Convert to fraction form
    877,682.60/1,315,465.50 = 403,718.12/x
  3. Step 3: Cross multiply
    877,682.60x = 1,315,465.50 × 403,718.12
  4. Step 4: Simplify right side
    877,682.60x = 531,077,258,584.86
  5. Step 5: Solve for x
    x = 531,077,258,584.86/877,682.60
  6. Step 6: Final answer
    x = 605,090.34

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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.