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Finding the Fourth Proportional to 531,443,203.80, 797,164,805.70 and 489,353,076.60

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Solution

The fourth proportional to 531,443,203.80, 797,164,805.70 and 489,353,076.60 is: 734,029,614.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,443,203.80 : 797,164,805.70 = 489,353,076.60 : x
  2. Step 2: Convert to fraction form
    531,443,203.80/797,164,805.70 = 489,353,076.60/x
  3. Step 3: Cross multiply
    531,443,203.80x = 797,164,805.70 × 489,353,076.60
  4. Step 4: Simplify right side
    531,443,203.80x = 390,095,050,226,536,256
  5. Step 5: Solve for x
    x = 390,095,050,226,536,256/531,443,203.80
  6. Step 6: Final answer
    x = 734,029,614.90

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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.