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Finding the Fourth Proportional to 571,733.64, 857,424.78 and 395,373.96

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Solution

The fourth proportional to 571,733.64, 857,424.78 and 395,373.96 is: 592,939.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,733.64 : 857,424.78 = 395,373.96 : x
  2. Step 2: Convert to fraction form
    571,733.64/857,424.78 = 395,373.96/x
  3. Step 3: Cross multiply
    571,733.64x = 857,424.78 × 395,373.96
  4. Step 4: Simplify right side
    571,733.64x = 339,003,430,670.73
  5. Step 5: Solve for x
    x = 339,003,430,670.73/571,733.64
  6. Step 6: Final answer
    x = 592,939.45

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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.