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Finding the Fourth Proportional to 619,475.80, 929,213.70 and 577,485.40

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Solution

The fourth proportional to 619,475.80, 929,213.70 and 577,485.40 is: 866,228.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,475.80 : 929,213.70 = 577,485.40 : x
  2. Step 2: Convert to fraction form
    619,475.80/929,213.70 = 577,485.40/x
  3. Step 3: Cross multiply
    619,475.80x = 929,213.70 × 577,485.40
  4. Step 4: Simplify right side
    619,475.80x = 536,607,345,229.98
  5. Step 5: Solve for x
    x = 536,607,345,229.98/619,475.80
  6. Step 6: Final answer
    x = 866,228.10

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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.