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Finding the Fourth Proportional to 487,732.12, 673,300.45 and 366,919.50

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Solution

The fourth proportional to 487,732.12, 673,300.45 and 366,919.50 is: 506,522.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,732.12 : 673,300.45 = 366,919.50 : x
  2. Step 2: Convert to fraction form
    487,732.12/673,300.45 = 366,919.50/x
  3. Step 3: Cross multiply
    487,732.12x = 673,300.45 × 366,919.50
  4. Step 4: Simplify right side
    487,732.12x = 247,047,064,463.78
  5. Step 5: Solve for x
    x = 247,047,064,463.78/487,732.12
  6. Step 6: Final answer
    x = 506,522.03

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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.