Home / 560,749.32-773,819.19-515,609.64

Finding the Fourth Proportional to 560,749.32, 773,819.19 and 515,609.64

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Solution

The fourth proportional to 560,749.32, 773,819.19 and 515,609.64 is: 711,527.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,749.32 : 773,819.19 = 515,609.64 : x
  2. Step 2: Convert to fraction form
    560,749.32/773,819.19 = 515,609.64/x
  3. Step 3: Cross multiply
    560,749.32x = 773,819.19 × 515,609.64
  4. Step 4: Simplify right side
    560,749.32x = 398,988,633,980.99
  5. Step 5: Solve for x
    x = 398,988,633,980.99/560,749.32
  6. Step 6: Final answer
    x = 711,527.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.