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Finding the Fourth Proportional to 611,462.25, 916,194.51 and 371,649.51

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Solution

The fourth proportional to 611,462.25, 916,194.51 and 371,649.51 is: 556,867.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,462.25 : 916,194.51 = 371,649.51 : x
  2. Step 2: Convert to fraction form
    611,462.25/916,194.51 = 371,649.51/x
  3. Step 3: Cross multiply
    611,462.25x = 916,194.51 × 371,649.51
  4. Step 4: Simplify right side
    611,462.25x = 340,503,240,706.19
  5. Step 5: Solve for x
    x = 340,503,240,706.19/611,462.25
  6. Step 6: Final answer
    x = 556,867.15

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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.