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Finding the Fourth Proportional to 487,730.62, 673,298.39 and 366,918.01

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Solution

The fourth proportional to 487,730.62, 673,298.39 and 366,918.01 is: 506,519.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,730.62 : 673,298.39 = 366,918.01 : x
  2. Step 2: Convert to fraction form
    487,730.62/673,298.39 = 366,918.01/x
  3. Step 3: Cross multiply
    487,730.62x = 673,298.39 × 366,918.01
  4. Step 4: Simplify right side
    487,730.62x = 247,045,305,395.00
  5. Step 5: Solve for x
    x = 247,045,305,395.00/487,730.62
  6. Step 6: Final answer
    x = 506,519.98

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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.