Home / 778,877.20-1,168,776.60-513,405.20

Finding the Fourth Proportional to 778,877.20, 1,168,776.60 and 513,405.20

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Solution

The fourth proportional to 778,877.20, 1,168,776.60 and 513,405.20 is: 770,411.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,877.20 : 1,168,776.60 = 513,405.20 : x
  2. Step 2: Convert to fraction form
    778,877.20/1,168,776.60 = 513,405.20/x
  3. Step 3: Cross multiply
    778,877.20x = 1,168,776.60 × 513,405.20
  4. Step 4: Simplify right side
    778,877.20x = 600,055,984,078.32
  5. Step 5: Solve for x
    x = 600,055,984,078.32/778,877.20
  6. Step 6: Final answer
    x = 770,411.54

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1.5x scale

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.