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Finding the Fourth Proportional to 659,399.40, 986,474.70 and 571,627.80

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Solution

The fourth proportional to 659,399.40, 986,474.70 and 571,627.80 is: 855,166.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,399.40 : 986,474.70 = 571,627.80 : x
  2. Step 2: Convert to fraction form
    659,399.40/986,474.70 = 571,627.80/x
  3. Step 3: Cross multiply
    659,399.40x = 986,474.70 × 571,627.80
  4. Step 4: Simplify right side
    659,399.40x = 563,896,362,516.66
  5. Step 5: Solve for x
    x = 563,896,362,516.66/659,399.40
  6. Step 6: Final answer
    x = 855,166.63

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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.