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Finding the Fourth Proportional to 616,029.48, 921,796.16 and 363,430.98

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Solution

The fourth proportional to 616,029.48, 921,796.16 and 363,430.98 is: 543,820.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,029.48 : 921,796.16 = 363,430.98 : x
  2. Step 2: Convert to fraction form
    616,029.48/921,796.16 = 363,430.98/x
  3. Step 3: Cross multiply
    616,029.48x = 921,796.16 × 363,430.98
  4. Step 4: Simplify right side
    616,029.48x = 335,009,279,971.88
  5. Step 5: Solve for x
    x = 335,009,279,971.88/616,029.48
  6. Step 6: Final answer
    x = 543,820.21

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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.