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Finding the Fourth Proportional to 524,407.20, 785,930.40 and 243,326.40

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Solution

The fourth proportional to 524,407.20, 785,930.40 and 243,326.40 is: 364,673.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,407.20 : 785,930.40 = 243,326.40 : x
  2. Step 2: Convert to fraction form
    524,407.20/785,930.40 = 243,326.40/x
  3. Step 3: Cross multiply
    524,407.20x = 785,930.40 × 243,326.40
  4. Step 4: Simplify right side
    524,407.20x = 191,237,614,882.56
  5. Step 5: Solve for x
    x = 191,237,614,882.56/524,407.20
  6. Step 6: Final answer
    x = 364,673.89

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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.