Home / 778,718.60-1,074,629.66-434,550.89

Finding the Fourth Proportional to 778,718.60, 1,074,629.66 and 434,550.89

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Solution

The fourth proportional to 778,718.60, 1,074,629.66 and 434,550.89 is: 599,679.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,718.60 : 1,074,629.66 = 434,550.89 : x
  2. Step 2: Convert to fraction form
    778,718.60/1,074,629.66 = 434,550.89/x
  3. Step 3: Cross multiply
    778,718.60x = 1,074,629.66 × 434,550.89
  4. Step 4: Simplify right side
    778,718.60x = 466,981,273,000.64
  5. Step 5: Solve for x
    x = 466,981,273,000.64/778,718.60
  6. Step 6: Final answer
    x = 599,679.10

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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.