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Finding the Fourth Proportional to 965,687.40, 1,447,955.10 and 591,978.60

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Solution

The fourth proportional to 965,687.40, 1,447,955.10 and 591,978.60 is: 887,614.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,687.40 : 1,447,955.10 = 591,978.60 : x
  2. Step 2: Convert to fraction form
    965,687.40/1,447,955.10 = 591,978.60/x
  3. Step 3: Cross multiply
    965,687.40x = 1,447,955.10 × 591,978.60
  4. Step 4: Simplify right side
    965,687.40x = 857,158,432,960.86
  5. Step 5: Solve for x
    x = 857,158,432,960.86/965,687.40
  6. Step 6: Final answer
    x = 887,614.80

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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.