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Finding the Fourth Proportional to 453,709.28, 625,977.80 and 257,443.52

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Solution

The fourth proportional to 453,709.28, 625,977.80 and 257,443.52 is: 355,192.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,709.28 : 625,977.80 = 257,443.52 : x
  2. Step 2: Convert to fraction form
    453,709.28/625,977.80 = 257,443.52/x
  3. Step 3: Cross multiply
    453,709.28x = 625,977.80 × 257,443.52
  4. Step 4: Simplify right side
    453,709.28x = 161,153,928,273.86
  5. Step 5: Solve for x
    x = 161,153,928,273.86/453,709.28
  6. Step 6: Final answer
    x = 355,192.05

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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.