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Finding the Fourth Proportional to 411,611.10, 577,499.70 and 411,611.10

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Solution

The fourth proportional to 411,611.10, 577,499.70 and 411,611.10 is: 577,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,611.10 : 577,499.70 = 411,611.10 : x
  2. Step 2: Convert to fraction form
    411,611.10/577,499.70 = 411,611.10/x
  3. Step 3: Cross multiply
    411,611.10x = 577,499.70 × 411,611.10
  4. Step 4: Simplify right side
    411,611.10x = 237,705,286,766.67
  5. Step 5: Solve for x
    x = 237,705,286,766.67/411,611.10
  6. Step 6: Final answer
    x = 577,499.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.