Home / 935,661.60-1,291,212.08-505,940.70

Finding the Fourth Proportional to 935,661.60, 1,291,212.08 and 505,940.70

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Solution

The fourth proportional to 935,661.60, 1,291,212.08 and 505,940.70 is: 698,197.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,661.60 : 1,291,212.08 = 505,940.70 : x
  2. Step 2: Convert to fraction form
    935,661.60/1,291,212.08 = 505,940.70/x
  3. Step 3: Cross multiply
    935,661.60x = 1,291,212.08 × 505,940.70
  4. Step 4: Simplify right side
    935,661.60x = 653,276,743,603.66
  5. Step 5: Solve for x
    x = 653,276,743,603.66/935,661.60
  6. Step 6: Final answer
    x = 698,197.66

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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.