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Finding the Fourth Proportional to 560,749.37, 773,730.63 and 319,017.83

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Solution

The fourth proportional to 560,749.37, 773,730.63 and 319,017.83 is: 440,185.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,749.37 : 773,730.63 = 319,017.83 : x
  2. Step 2: Convert to fraction form
    560,749.37/773,730.63 = 319,017.83/x
  3. Step 3: Cross multiply
    560,749.37x = 773,730.63 × 319,017.83
  4. Step 4: Simplify right side
    560,749.37x = 246,833,862,718.48
  5. Step 5: Solve for x
    x = 246,833,862,718.48/560,749.37
  6. Step 6: Final answer
    x = 440,185.72

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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.