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Finding the Fourth Proportional to 543,068.03, 749,431.38 and 301,350.06

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Solution

The fourth proportional to 543,068.03, 749,431.38 and 301,350.06 is: 415,861.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,068.03 : 749,431.38 = 301,350.06 : x
  2. Step 2: Convert to fraction form
    543,068.03/749,431.38 = 301,350.06/x
  3. Step 3: Cross multiply
    543,068.03x = 749,431.38 × 301,350.06
  4. Step 4: Simplify right side
    543,068.03x = 225,841,191,328.88
  5. Step 5: Solve for x
    x = 225,841,191,328.88/543,068.03
  6. Step 6: Final answer
    x = 415,861.70

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1.5x scale

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.