Home / 939,253.70-1,296,169.48-509,533.86

Finding the Fourth Proportional to 939,253.70, 1,296,169.48 and 509,533.86

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Solution

The fourth proportional to 939,253.70, 1,296,169.48 and 509,533.86 is: 703,156.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,253.70 : 1,296,169.48 = 509,533.86 : x
  2. Step 2: Convert to fraction form
    939,253.70/1,296,169.48 = 509,533.86/x
  3. Step 3: Cross multiply
    939,253.70x = 1,296,169.48 × 509,533.86
  4. Step 4: Simplify right side
    939,253.70x = 660,442,238,358.59
  5. Step 5: Solve for x
    x = 660,442,238,358.59/939,253.70
  6. Step 6: Final answer
    x = 703,156.39

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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.