Home / 928,838.24-1,281,811.20-521,030.60

Finding the Fourth Proportional to 928,838.24, 1,281,811.20 and 521,030.60

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Solution

The fourth proportional to 928,838.24, 1,281,811.20 and 521,030.60 is: 719,030.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,838.24 : 1,281,811.20 = 521,030.60 : x
  2. Step 2: Convert to fraction form
    928,838.24/1,281,811.20 = 521,030.60/x
  3. Step 3: Cross multiply
    928,838.24x = 1,281,811.20 × 521,030.60
  4. Step 4: Simplify right side
    928,838.24x = 667,862,858,622.72
  5. Step 5: Solve for x
    x = 667,862,858,622.72/928,838.24
  6. Step 6: Final answer
    x = 719,030.32

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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.