Home / 698,777.24-964,346.76-392,949.86

Finding the Fourth Proportional to 698,777.24, 964,346.76 and 392,949.86

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Solution

The fourth proportional to 698,777.24, 964,346.76 and 392,949.86 is: 542,290.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,777.24 : 964,346.76 = 392,949.86 : x
  2. Step 2: Convert to fraction form
    698,777.24/964,346.76 = 392,949.86/x
  3. Step 3: Cross multiply
    698,777.24x = 964,346.76 × 392,949.86
  4. Step 4: Simplify right side
    698,777.24x = 378,939,924,333.45
  5. Step 5: Solve for x
    x = 378,939,924,333.45/698,777.24
  6. Step 6: Final answer
    x = 542,290.02

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1.5x scale

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.