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Finding the Fourth Proportional to 530,140.80, 793,648.80 and 349,893.72

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Solution

The fourth proportional to 530,140.80, 793,648.80 and 349,893.72 is: 523,809.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,140.80 : 793,648.80 = 349,893.72 : x
  2. Step 2: Convert to fraction form
    530,140.80/793,648.80 = 349,893.72/x
  3. Step 3: Cross multiply
    530,140.80x = 793,648.80 × 349,893.72
  4. Step 4: Simplify right side
    530,140.80x = 277,692,731,005.54
  5. Step 5: Solve for x
    x = 277,692,731,005.54/530,140.80
  6. Step 6: Final answer
    x = 523,809.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.