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Finding the Fourth Proportional to 504,082.80, 756,124.20 and 457,426.80

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Solution

The fourth proportional to 504,082.80, 756,124.20 and 457,426.80 is: 686,140.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,082.80 : 756,124.20 = 457,426.80 : x
  2. Step 2: Convert to fraction form
    504,082.80/756,124.20 = 457,426.80/x
  3. Step 3: Cross multiply
    504,082.80x = 756,124.20 × 457,426.80
  4. Step 4: Simplify right side
    504,082.80x = 345,871,473,208.56
  5. Step 5: Solve for x
    x = 345,871,473,208.56/504,082.80
  6. Step 6: Final answer
    x = 686,140.20

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.