Home / 518,985.45-778,205.61-234,430.83

Finding the Fourth Proportional to 518,985.45, 778,205.61 and 234,430.83

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Solution

The fourth proportional to 518,985.45, 778,205.61 and 234,430.83 is: 351,523.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,985.45 : 778,205.61 = 234,430.83 : x
  2. Step 2: Convert to fraction form
    518,985.45/778,205.61 = 234,430.83/x
  3. Step 3: Cross multiply
    518,985.45x = 778,205.61 × 234,430.83
  4. Step 4: Simplify right side
    518,985.45x = 182,435,387,062.96
  5. Step 5: Solve for x
    x = 182,435,387,062.96/518,985.45
  6. Step 6: Final answer
    x = 351,523.12

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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.