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Finding the Fourth Proportional to 3,715.40, 5,573.05 and 904.26

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Solution

The fourth proportional to 3,715.40, 5,573.05 and 904.26 is: 1,356.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.40 : 5,573.05 = 904.26 : x
  2. Step 2: Convert to fraction form
    3,715.40/5,573.05 = 904.26/x
  3. Step 3: Cross multiply
    3,715.40x = 5,573.05 × 904.26
  4. Step 4: Simplify right side
    3,715.40x = 5,039,473.48
  5. Step 5: Solve for x
    x = 5,039,473.48/3,715.40
  6. Step 6: Final answer
    x = 1,356.37

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1.5x scale

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.