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Finding the Fourth Proportional to 592,673.72, 817,889.81 and 320,741.69

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Solution

The fourth proportional to 592,673.72, 817,889.81 and 320,741.69 is: 442,623.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,673.72 : 817,889.81 = 320,741.69 : x
  2. Step 2: Convert to fraction form
    592,673.72/817,889.81 = 320,741.69/x
  3. Step 3: Cross multiply
    592,673.72x = 817,889.81 × 320,741.69
  4. Step 4: Simplify right side
    592,673.72x = 262,331,356,004.19
  5. Step 5: Solve for x
    x = 262,331,356,004.19/592,673.72
  6. Step 6: Final answer
    x = 442,623.57

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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.