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Finding the Fourth Proportional to 530,013.41, 731,548.42 and 300,704.92

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Solution

The fourth proportional to 530,013.41, 731,548.42 and 300,704.92 is: 415,046.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,013.41 : 731,548.42 = 300,704.92 : x
  2. Step 2: Convert to fraction form
    530,013.41/731,548.42 = 300,704.92/x
  3. Step 3: Cross multiply
    530,013.41x = 731,548.42 × 300,704.92
  4. Step 4: Simplify right side
    530,013.41x = 219,980,209,112.23
  5. Step 5: Solve for x
    x = 219,980,209,112.23/530,013.41
  6. Step 6: Final answer
    x = 415,046.50

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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.