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Finding the Fourth Proportional to 368,846.42, 509,003.04 and 207,703.40

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Solution

The fourth proportional to 368,846.42, 509,003.04 and 207,703.40 is: 286,627.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,846.42 : 509,003.04 = 207,703.40 : x
  2. Step 2: Convert to fraction form
    368,846.42/509,003.04 = 207,703.40/x
  3. Step 3: Cross multiply
    368,846.42x = 509,003.04 × 207,703.40
  4. Step 4: Simplify right side
    368,846.42x = 105,721,662,018.34
  5. Step 5: Solve for x
    x = 105,721,662,018.34/368,846.42
  6. Step 6: Final answer
    x = 286,627.87

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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.