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Finding the Fourth Proportional to 528,898,673.80, 793,348,010.70 and 365,639,998.60

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Solution

The fourth proportional to 528,898,673.80, 793,348,010.70 and 365,639,998.60 is: 548,459,997.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,898,673.80 : 793,348,010.70 = 365,639,998.60 : x
  2. Step 2: Convert to fraction form
    528,898,673.80/793,348,010.70 = 365,639,998.60/x
  3. Step 3: Cross multiply
    528,898,673.80x = 793,348,010.70 × 365,639,998.60
  4. Step 4: Simplify right side
    528,898,673.80x = 290,079,765,521,660,800
  5. Step 5: Solve for x
    x = 290,079,765,521,660,800/528,898,673.80
  6. Step 6: Final answer
    x = 548,459,997.90

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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.