Home / 778,874.60-1,168,311.90-512,935.40

Finding the Fourth Proportional to 778,874.60, 1,168,311.90 and 512,935.40

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Solution

The fourth proportional to 778,874.60, 1,168,311.90 and 512,935.40 is: 769,403.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,874.60 : 1,168,311.90 = 512,935.40 : x
  2. Step 2: Convert to fraction form
    778,874.60/1,168,311.90 = 512,935.40/x
  3. Step 3: Cross multiply
    778,874.60x = 1,168,311.90 × 512,935.40
  4. Step 4: Simplify right side
    778,874.60x = 599,268,531,751.26
  5. Step 5: Solve for x
    x = 599,268,531,751.26/778,874.60
  6. Step 6: Final answer
    x = 769,403.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.