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Finding the Fourth Proportional to 647,194.12, 893,158.45 and 360,716.29

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Solution

The fourth proportional to 647,194.12, 893,158.45 and 360,716.29 is: 497,805.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,194.12 : 893,158.45 = 360,716.29 : x
  2. Step 2: Convert to fraction form
    647,194.12/893,158.45 = 360,716.29/x
  3. Step 3: Cross multiply
    647,194.12x = 893,158.45 × 360,716.29
  4. Step 4: Simplify right side
    647,194.12x = 322,176,799,331.46
  5. Step 5: Solve for x
    x = 322,176,799,331.46/647,194.12
  6. Step 6: Final answer
    x = 497,805.51

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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.