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Finding the Fourth Proportional to 388,285.79, 535,685.49 and 241,041.57

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Solution

The fourth proportional to 388,285.79, 535,685.49 and 241,041.57 is: 332,544.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,285.79 : 535,685.49 = 241,041.57 : x
  2. Step 2: Convert to fraction form
    388,285.79/535,685.49 = 241,041.57/x
  3. Step 3: Cross multiply
    388,285.79x = 535,685.49 × 241,041.57
  4. Step 4: Simplify right side
    388,285.79x = 129,122,472,201.27
  5. Step 5: Solve for x
    x = 129,122,472,201.27/388,285.79
  6. Step 6: Final answer
    x = 332,544.93

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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.