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Finding the Fourth Proportional to 993,953.80, 1,491,368.10 and 461,200.60

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Solution

The fourth proportional to 993,953.80, 1,491,368.10 and 461,200.60 is: 692,003.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,953.80 : 1,491,368.10 = 461,200.60 : x
  2. Step 2: Convert to fraction form
    993,953.80/1,491,368.10 = 461,200.60/x
  3. Step 3: Cross multiply
    993,953.80x = 1,491,368.10 × 461,200.60
  4. Step 4: Simplify right side
    993,953.80x = 687,819,862,540.86
  5. Step 5: Solve for x
    x = 687,819,862,540.86/993,953.80
  6. Step 6: Final answer
    x = 692,003.86

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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.