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Finding the Fourth Proportional to 543,054.56, 749,427.28 and 301,329.50

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Solution

The fourth proportional to 543,054.56, 749,427.28 and 301,329.50 is: 415,841.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,054.56 : 749,427.28 = 301,329.50 : x
  2. Step 2: Convert to fraction form
    543,054.56/749,427.28 = 301,329.50/x
  3. Step 3: Cross multiply
    543,054.56x = 749,427.28 × 301,329.50
  4. Step 4: Simplify right side
    543,054.56x = 225,824,547,568.76
  5. Step 5: Solve for x
    x = 225,824,547,568.76/543,054.56
  6. Step 6: Final answer
    x = 415,841.36

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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.