Home / 837,309.28-1,155,517.12-479,682.40

Finding the Fourth Proportional to 837,309.28, 1,155,517.12 and 479,682.40

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Solution

The fourth proportional to 837,309.28, 1,155,517.12 and 479,682.40 is: 661,979.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,309.28 : 1,155,517.12 = 479,682.40 : x
  2. Step 2: Convert to fraction form
    837,309.28/1,155,517.12 = 479,682.40/x
  3. Step 3: Cross multiply
    837,309.28x = 1,155,517.12 × 479,682.40
  4. Step 4: Simplify right side
    837,309.28x = 554,281,225,362.69
  5. Step 5: Solve for x
    x = 554,281,225,362.69/837,309.28
  6. Step 6: Final answer
    x = 661,979.08

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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.