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Finding the Fourth Proportional to 516,423.70, 774,635.55 and 496,740.70

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Solution

The fourth proportional to 516,423.70, 774,635.55 and 496,740.70 is: 745,111.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,423.70 : 774,635.55 = 496,740.70 : x
  2. Step 2: Convert to fraction form
    516,423.70/774,635.55 = 496,740.70/x
  3. Step 3: Cross multiply
    516,423.70x = 774,635.55 × 496,740.70
  4. Step 4: Simplify right side
    516,423.70x = 384,793,005,351.89
  5. Step 5: Solve for x
    x = 384,793,005,351.89/516,423.70
  6. Step 6: Final answer
    x = 745,111.05

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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.