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Finding the Fourth Proportional to 541,122.40, 811,683.60 and 515,317.60

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Solution

The fourth proportional to 541,122.40, 811,683.60 and 515,317.60 is: 772,976.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,122.40 : 811,683.60 = 515,317.60 : x
  2. Step 2: Convert to fraction form
    541,122.40/811,683.60 = 515,317.60/x
  3. Step 3: Cross multiply
    541,122.40x = 811,683.60 × 515,317.60
  4. Step 4: Simplify right side
    541,122.40x = 418,274,844,711.36
  5. Step 5: Solve for x
    x = 418,274,844,711.36/541,122.40
  6. Step 6: Final answer
    x = 772,976.40

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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.