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Finding the Fourth Proportional to 565,711.85, 780,710.39 and 350,921.11

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Solution

The fourth proportional to 565,711.85, 780,710.39 and 350,921.11 is: 484,288.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,711.85 : 780,710.39 = 350,921.11 : x
  2. Step 2: Convert to fraction form
    565,711.85/780,710.39 = 350,921.11/x
  3. Step 3: Cross multiply
    565,711.85x = 780,710.39 × 350,921.11
  4. Step 4: Simplify right side
    565,711.85x = 273,967,756,647.33
  5. Step 5: Solve for x
    x = 273,967,756,647.33/565,711.85
  6. Step 6: Final answer
    x = 484,288.52

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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.