Home / 935,680.60-1,291,238.28-505,959.64

Finding the Fourth Proportional to 935,680.60, 1,291,238.28 and 505,959.64

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Solution

The fourth proportional to 935,680.60, 1,291,238.28 and 505,959.64 is: 698,223.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,680.60 : 1,291,238.28 = 505,959.64 : x
  2. Step 2: Convert to fraction form
    935,680.60/1,291,238.28 = 505,959.64/x
  3. Step 3: Cross multiply
    935,680.60x = 1,291,238.28 × 505,959.64
  4. Step 4: Simplify right side
    935,680.60x = 653,314,455,303.02
  5. Step 5: Solve for x
    x = 653,314,455,303.02/935,680.60
  6. Step 6: Final answer
    x = 698,223.79

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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.