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Finding the Fourth Proportional to 523,246.40, 784,869.60 and 517,716.80

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Solution

The fourth proportional to 523,246.40, 784,869.60 and 517,716.80 is: 776,575.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,246.40 : 784,869.60 = 517,716.80 : x
  2. Step 2: Convert to fraction form
    523,246.40/784,869.60 = 517,716.80/x
  3. Step 3: Cross multiply
    523,246.40x = 784,869.60 × 517,716.80
  4. Step 4: Simplify right side
    523,246.40x = 406,340,177,729.28
  5. Step 5: Solve for x
    x = 406,340,177,729.28/523,246.40
  6. Step 6: Final answer
    x = 776,575.20

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Similar ratio
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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.