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Finding the Fourth Proportional to 528,999.40, 793,839.30 and 292,511.80

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Solution

The fourth proportional to 528,999.40, 793,839.30 and 292,511.80 is: 438,955.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,999.40 : 793,839.30 = 292,511.80 : x
  2. Step 2: Convert to fraction form
    528,999.40/793,839.30 = 292,511.80/x
  3. Step 3: Cross multiply
    528,999.40x = 793,839.30 × 292,511.80
  4. Step 4: Simplify right side
    528,999.40x = 232,207,362,553.74
  5. Step 5: Solve for x
    x = 232,207,362,553.74/528,999.40
  6. Step 6: Final answer
    x = 438,955.81

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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.