Home / 518,948.55-778,418.13-163,962.54

Finding the Fourth Proportional to 518,948.55, 778,418.13 and 163,962.54

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Solution

The fourth proportional to 518,948.55, 778,418.13 and 163,962.54 is: 245,942.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,948.55 : 778,418.13 = 163,962.54 : x
  2. Step 2: Convert to fraction form
    518,948.55/778,418.13 = 163,962.54/x
  3. Step 3: Cross multiply
    518,948.55x = 778,418.13 × 163,962.54
  4. Step 4: Simplify right side
    518,948.55x = 127,631,413,776.85
  5. Step 5: Solve for x
    x = 127,631,413,776.85/518,948.55
  6. Step 6: Final answer
    x = 245,942.33

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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.