Home / 922,986.20-1,273,784.88-515,167.60

Finding the Fourth Proportional to 922,986.20, 1,273,784.88 and 515,167.60

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Solution

The fourth proportional to 922,986.20, 1,273,784.88 and 515,167.60 is: 710,966.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,986.20 : 1,273,784.88 = 515,167.60 : x
  2. Step 2: Convert to fraction form
    922,986.20/1,273,784.88 = 515,167.60/x
  3. Step 3: Cross multiply
    922,986.20x = 1,273,784.88 × 515,167.60
  4. Step 4: Simplify right side
    922,986.20x = 656,212,699,545.89
  5. Step 5: Solve for x
    x = 656,212,699,545.89/922,986.20
  6. Step 6: Final answer
    x = 710,966.97

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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.