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Finding the Fourth Proportional to 484,658.60, 726,987.90 and 335,359.40

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Solution

The fourth proportional to 484,658.60, 726,987.90 and 335,359.40 is: 503,039.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,658.60 : 726,987.90 = 335,359.40 : x
  2. Step 2: Convert to fraction form
    484,658.60/726,987.90 = 335,359.40/x
  3. Step 3: Cross multiply
    484,658.60x = 726,987.90 × 335,359.40
  4. Step 4: Simplify right side
    484,658.60x = 243,802,225,951.26
  5. Step 5: Solve for x
    x = 243,802,225,951.26/484,658.60
  6. Step 6: Final answer
    x = 503,039.10

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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.