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Finding the Fourth Proportional to 516,415.70, 774,623.55 and 496,732.70

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Solution

The fourth proportional to 516,415.70, 774,623.55 and 496,732.70 is: 745,099.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,415.70 : 774,623.55 = 496,732.70 : x
  2. Step 2: Convert to fraction form
    516,415.70/774,623.55 = 496,732.70/x
  3. Step 3: Cross multiply
    516,415.70x = 774,623.55 × 496,732.70
  4. Step 4: Simplify right side
    516,415.70x = 384,780,847,475.09
  5. Step 5: Solve for x
    x = 384,780,847,475.09/516,415.70
  6. Step 6: Final answer
    x = 745,099.05

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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.