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Finding the Fourth Proportional to 557,018.03, 768,811.29 and 353,350.01

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Solution

The fourth proportional to 557,018.03, 768,811.29 and 353,350.01 is: 487,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,018.03 : 768,811.29 = 353,350.01 : x
  2. Step 2: Convert to fraction form
    557,018.03/768,811.29 = 353,350.01/x
  3. Step 3: Cross multiply
    557,018.03x = 768,811.29 × 353,350.01
  4. Step 4: Simplify right side
    557,018.03x = 271,659,477,009.61
  5. Step 5: Solve for x
    x = 271,659,477,009.61/557,018.03
  6. Step 6: Final answer
    x = 487,703.20

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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.