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Finding the Fourth Proportional to 612,713.84, 917,496.11 and 375,336.86

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Solution

The fourth proportional to 612,713.84, 917,496.11 and 375,336.86 is: 562,040.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,713.84 : 917,496.11 = 375,336.86 : x
  2. Step 2: Convert to fraction form
    612,713.84/917,496.11 = 375,336.86/x
  3. Step 3: Cross multiply
    612,713.84x = 917,496.11 × 375,336.86
  4. Step 4: Simplify right side
    612,713.84x = 344,370,105,340.48
  5. Step 5: Solve for x
    x = 344,370,105,340.48/612,713.84
  6. Step 6: Final answer
    x = 562,040.69

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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.