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Finding the Fourth Proportional to 556,819.28, 835,332.80 and 257,101.86

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Solution

The fourth proportional to 556,819.28, 835,332.80 and 257,101.86 is: 385,700.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,819.28 : 835,332.80 = 257,101.86 : x
  2. Step 2: Convert to fraction form
    556,819.28/835,332.80 = 257,101.86/x
  3. Step 3: Cross multiply
    556,819.28x = 835,332.80 × 257,101.86
  4. Step 4: Simplify right side
    556,819.28x = 214,765,615,313.50
  5. Step 5: Solve for x
    x = 214,765,615,313.50/556,819.28
  6. Step 6: Final answer
    x = 385,700.76

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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.