Home / 879,777.60-1,214,107.20-477,369.60

Finding the Fourth Proportional to 879,777.60, 1,214,107.20 and 477,369.60

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Solution

The fourth proportional to 879,777.60, 1,214,107.20 and 477,369.60 is: 658,777.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,777.60 : 1,214,107.20 = 477,369.60 : x
  2. Step 2: Convert to fraction form
    879,777.60/1,214,107.20 = 477,369.60/x
  3. Step 3: Cross multiply
    879,777.60x = 1,214,107.20 × 477,369.60
  4. Step 4: Simplify right side
    879,777.60x = 579,577,868,421.12
  5. Step 5: Solve for x
    x = 579,577,868,421.12/879,777.60
  6. Step 6: Final answer
    x = 658,777.71

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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.