Home / 579,521,997.60-869,324,986.80-348,994,701.60

Finding the Fourth Proportional to 579,521,997.60, 869,324,986.80 and 348,994,701.60

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Solution

The fourth proportional to 579,521,997.60, 869,324,986.80 and 348,994,701.60 is: 523,517,339.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,521,997.60 : 869,324,986.80 = 348,994,701.60 : x
  2. Step 2: Convert to fraction form
    579,521,997.60/869,324,986.80 = 348,994,701.60/x
  3. Step 3: Cross multiply
    579,521,997.60x = 869,324,986.80 × 348,994,701.60
  4. Step 4: Simplify right side
    579,521,997.60x = 303,389,814,361,689,920
  5. Step 5: Solve for x
    x = 303,389,814,361,689,920/579,521,997.60
  6. Step 6: Final answer
    x = 523,517,339.49

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Double scale
Find fourth proportional to 579,521,998.60, 869,324,988.30 and 348,994,702.60
Similar ratio
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1.5x scale

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.