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Finding the Fourth Proportional to 535,710.36, 739,778.22 and 345,051.48

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Solution

The fourth proportional to 535,710.36, 739,778.22 and 345,051.48 is: 476,491.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,710.36 : 739,778.22 = 345,051.48 : x
  2. Step 2: Convert to fraction form
    535,710.36/739,778.22 = 345,051.48/x
  3. Step 3: Cross multiply
    535,710.36x = 739,778.22 × 345,051.48
  4. Step 4: Simplify right side
    535,710.36x = 255,261,569,682.77
  5. Step 5: Solve for x
    x = 255,261,569,682.77/535,710.36
  6. Step 6: Final answer
    x = 476,491.76

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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.