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Finding the Fourth Proportional to 543,216.54, 749,627.55 and 301,484.94

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Solution

The fourth proportional to 543,216.54, 749,627.55 and 301,484.94 is: 416,042.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,216.54 : 749,627.55 = 301,484.94 : x
  2. Step 2: Convert to fraction form
    543,216.54/749,627.55 = 301,484.94/x
  3. Step 3: Cross multiply
    543,216.54x = 749,627.55 × 301,484.94
  4. Step 4: Simplify right side
    543,216.54x = 226,001,416,934.10
  5. Step 5: Solve for x
    x = 226,001,416,934.10/543,216.54
  6. Step 6: Final answer
    x = 416,042.96

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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.