Home / 499,943.72-690,244.26-446,136.23

Finding the Fourth Proportional to 499,943.72, 690,244.26 and 446,136.23

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Solution

The fourth proportional to 499,943.72, 690,244.26 and 446,136.23 is: 615,955.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,943.72 : 690,244.26 = 446,136.23 : x
  2. Step 2: Convert to fraction form
    499,943.72/690,244.26 = 446,136.23/x
  3. Step 3: Cross multiply
    499,943.72x = 690,244.26 × 446,136.23
  4. Step 4: Simplify right side
    499,943.72x = 307,942,971,935.54
  5. Step 5: Solve for x
    x = 307,942,971,935.54/499,943.72
  6. Step 6: Final answer
    x = 615,955.28

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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.