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Finding the Fourth Proportional to 587,777.40, 881,666.10 and 307,380.60

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Solution

The fourth proportional to 587,777.40, 881,666.10 and 307,380.60 is: 461,070.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,777.40 : 881,666.10 = 307,380.60 : x
  2. Step 2: Convert to fraction form
    587,777.40/881,666.10 = 307,380.60/x
  3. Step 3: Cross multiply
    587,777.40x = 881,666.10 × 307,380.60
  4. Step 4: Simplify right side
    587,777.40x = 271,007,054,817.66
  5. Step 5: Solve for x
    x = 271,007,054,817.66/587,777.40
  6. Step 6: Final answer
    x = 461,070.90

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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.