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Finding the Fourth Proportional to 495,775.59, 742,509.99 and 482,138.43

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Solution

The fourth proportional to 495,775.59, 742,509.99 and 482,138.43 is: 722,085.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,775.59 : 742,509.99 = 482,138.43 : x
  2. Step 2: Convert to fraction form
    495,775.59/742,509.99 = 482,138.43/x
  3. Step 3: Cross multiply
    495,775.59x = 742,509.99 × 482,138.43
  4. Step 4: Simplify right side
    495,775.59x = 357,992,600,837.92
  5. Step 5: Solve for x
    x = 357,992,600,837.92/495,775.59
  6. Step 6: Final answer
    x = 722,085.98

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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.