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Finding the Fourth Proportional to 529,641.20, 793,295.40 and 371,010.80

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Solution

The fourth proportional to 529,641.20, 793,295.40 and 371,010.80 is: 555,699.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,641.20 : 793,295.40 = 371,010.80 : x
  2. Step 2: Convert to fraction form
    529,641.20/793,295.40 = 371,010.80/x
  3. Step 3: Cross multiply
    529,641.20x = 793,295.40 × 371,010.80
  4. Step 4: Simplify right side
    529,641.20x = 294,321,160,990.32
  5. Step 5: Solve for x
    x = 294,321,160,990.32/529,641.20
  6. Step 6: Final answer
    x = 555,699.14

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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.