Home / 935,685.36-1,291,247.18-505,965.51

Finding the Fourth Proportional to 935,685.36, 1,291,247.18 and 505,965.51

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Solution

The fourth proportional to 935,685.36, 1,291,247.18 and 505,965.51 is: 698,233.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,685.36 : 1,291,247.18 = 505,965.51 : x
  2. Step 2: Convert to fraction form
    935,685.36/1,291,247.18 = 505,965.51/x
  3. Step 3: Cross multiply
    935,685.36x = 1,291,247.18 × 505,965.51
  4. Step 4: Simplify right side
    935,685.36x = 653,326,535,434.93
  5. Step 5: Solve for x
    x = 653,326,535,434.93/935,685.36
  6. Step 6: Final answer
    x = 698,233.15

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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.