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Finding the Fourth Proportional to 592,477.79, 817,618.91 and 320,545.80

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Solution

The fourth proportional to 592,477.79, 817,618.91 and 320,545.80 is: 442,352.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,477.79 : 817,618.91 = 320,545.80 : x
  2. Step 2: Convert to fraction form
    592,477.79/817,618.91 = 320,545.80/x
  3. Step 3: Cross multiply
    592,477.79x = 817,618.91 × 320,545.80
  4. Step 4: Simplify right side
    592,477.79x = 262,084,305,998.35
  5. Step 5: Solve for x
    x = 262,084,305,998.35/592,477.79
  6. Step 6: Final answer
    x = 442,352.97

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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.