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Finding the Fourth Proportional to 656,806.69, 905,868.43 and 452,810.85

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Solution

The fourth proportional to 656,806.69, 905,868.43 and 452,810.85 is: 624,517.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,806.69 : 905,868.43 = 452,810.85 : x
  2. Step 2: Convert to fraction form
    656,806.69/905,868.43 = 452,810.85/x
  3. Step 3: Cross multiply
    656,806.69x = 905,868.43 × 452,810.85
  4. Step 4: Simplify right side
    656,806.69x = 410,187,053,776.47
  5. Step 5: Solve for x
    x = 410,187,053,776.47/656,806.69
  6. Step 6: Final answer
    x = 624,517.17

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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.