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Finding the Fourth Proportional to 516,869.43, 775,783.92 and 264,330.39

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Solution

The fourth proportional to 516,869.43, 775,783.92 and 264,330.39 is: 396,740.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,869.43 : 775,783.92 = 264,330.39 : x
  2. Step 2: Convert to fraction form
    516,869.43/775,783.92 = 264,330.39/x
  3. Step 3: Cross multiply
    516,869.43x = 775,783.92 × 264,330.39
  4. Step 4: Simplify right side
    516,869.43x = 205,063,263,807.40
  5. Step 5: Solve for x
    x = 205,063,263,807.40/516,869.43
  6. Step 6: Final answer
    x = 396,740.94

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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.