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Finding the Fourth Proportional to 584,140.37, 806,478.63 and 447,912.59

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Solution

The fourth proportional to 584,140.37, 806,478.63 and 447,912.59 is: 618,399.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,140.37 : 806,478.63 = 447,912.59 : x
  2. Step 2: Convert to fraction form
    584,140.37/806,478.63 = 447,912.59/x
  3. Step 3: Cross multiply
    584,140.37x = 806,478.63 × 447,912.59
  4. Step 4: Simplify right side
    584,140.37x = 361,231,931,942.95
  5. Step 5: Solve for x
    x = 361,231,931,942.95/584,140.37
  6. Step 6: Final answer
    x = 618,399.19

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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.