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Finding the Fourth Proportional to 562,514.40, 776,271.92 and 304,391.33

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Solution

The fourth proportional to 562,514.40, 776,271.92 and 304,391.33 is: 420,061.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,514.40 : 776,271.92 = 304,391.33 : x
  2. Step 2: Convert to fraction form
    562,514.40/776,271.92 = 304,391.33/x
  3. Step 3: Cross multiply
    562,514.40x = 776,271.92 × 304,391.33
  4. Step 4: Simplify right side
    562,514.40x = 236,290,436,767.14
  5. Step 5: Solve for x
    x = 236,290,436,767.14/562,514.40
  6. Step 6: Final answer
    x = 420,061.13

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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.