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Finding the Fourth Proportional to 592,604.72, 817,788.80 and 320,666.66

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Solution

The fourth proportional to 592,604.72, 817,788.80 and 320,666.66 is: 442,516.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,604.72 : 817,788.80 = 320,666.66 : x
  2. Step 2: Convert to fraction form
    592,604.72/817,788.80 = 320,666.66/x
  3. Step 3: Cross multiply
    592,604.72x = 817,788.80 × 320,666.66
  4. Step 4: Simplify right side
    592,604.72x = 262,237,603,081.41
  5. Step 5: Solve for x
    x = 262,237,603,081.41/592,604.72
  6. Step 6: Final answer
    x = 442,516.90

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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.