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Finding the Fourth Proportional to 617,677.53, 852,273.81 and 388,101.83

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Solution

The fourth proportional to 617,677.53, 852,273.81 and 388,101.83 is: 535,504.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,677.53 : 852,273.81 = 388,101.83 : x
  2. Step 2: Convert to fraction form
    617,677.53/852,273.81 = 388,101.83/x
  3. Step 3: Cross multiply
    617,677.53x = 852,273.81 × 388,101.83
  4. Step 4: Simplify right side
    617,677.53x = 330,769,021,060.70
  5. Step 5: Solve for x
    x = 330,769,021,060.70/617,677.53
  6. Step 6: Final answer
    x = 535,504.38

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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.