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Finding the Fourth Proportional to 586,285.86, 879,580.41 and 343,332.11

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Solution

The fourth proportional to 586,285.86, 879,580.41 and 343,332.11 is: 515,086.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,285.86 : 879,580.41 = 343,332.11 : x
  2. Step 2: Convert to fraction form
    586,285.86/879,580.41 = 343,332.11/x
  3. Step 3: Cross multiply
    586,285.86x = 879,580.41 × 343,332.11
  4. Step 4: Simplify right side
    586,285.86x = 301,988,201,149.14
  5. Step 5: Solve for x
    x = 301,988,201,149.14/586,285.86
  6. Step 6: Final answer
    x = 515,086.96

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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.