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Finding the Fourth Proportional to 516,752.70, 775,078.90 and 156,926.65

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Solution

The fourth proportional to 516,752.70, 775,078.90 and 156,926.65 is: 235,374.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,752.70 : 775,078.90 = 156,926.65 : x
  2. Step 2: Convert to fraction form
    516,752.70/775,078.90 = 156,926.65/x
  3. Step 3: Cross multiply
    516,752.70x = 775,078.90 × 156,926.65
  4. Step 4: Simplify right side
    516,752.70x = 121,630,535,262.69
  5. Step 5: Solve for x
    x = 121,630,535,262.69/516,752.70
  6. Step 6: Final answer
    x = 235,374.75

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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.