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Finding the Fourth Proportional to 675,069.52, 931,614.60 and 373,274.32

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Solution

The fourth proportional to 675,069.52, 931,614.60 and 373,274.32 is: 515,128.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,069.52 : 931,614.60 = 373,274.32 : x
  2. Step 2: Convert to fraction form
    675,069.52/931,614.60 = 373,274.32/x
  3. Step 3: Cross multiply
    675,069.52x = 931,614.60 × 373,274.32
  4. Step 4: Simplify right side
    675,069.52x = 347,747,806,317.07
  5. Step 5: Solve for x
    x = 347,747,806,317.07/675,069.52
  6. Step 6: Final answer
    x = 515,128.88

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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.