Home / 861,601.96-1,189,049.70-499,041.64

Finding the Fourth Proportional to 861,601.96, 1,189,049.70 and 499,041.64

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Solution

The fourth proportional to 861,601.96, 1,189,049.70 and 499,041.64 is: 688,700.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,601.96 : 1,189,049.70 = 499,041.64 : x
  2. Step 2: Convert to fraction form
    861,601.96/1,189,049.70 = 499,041.64/x
  3. Step 3: Cross multiply
    861,601.96x = 1,189,049.70 × 499,041.64
  4. Step 4: Simplify right side
    861,601.96x = 593,385,312,329.51
  5. Step 5: Solve for x
    x = 593,385,312,329.51/861,601.96
  6. Step 6: Final answer
    x = 688,700.05

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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.