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Finding the Fourth Proportional to 491,712.40, 737,568.60 and 433,975.60

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Solution

The fourth proportional to 491,712.40, 737,568.60 and 433,975.60 is: 650,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,712.40 : 737,568.60 = 433,975.60 : x
  2. Step 2: Convert to fraction form
    491,712.40/737,568.60 = 433,975.60/x
  3. Step 3: Cross multiply
    491,712.40x = 737,568.60 × 433,975.60
  4. Step 4: Simplify right side
    491,712.40x = 320,086,775,726.16
  5. Step 5: Solve for x
    x = 320,086,775,726.16/491,712.40
  6. Step 6: Final answer
    x = 650,963.40

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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.