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Finding the Fourth Proportional to 577,367,998.80, 866,051,998.20 and 560,361,886.80

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Solution

The fourth proportional to 577,367,998.80, 866,051,998.20 and 560,361,886.80 is: 840,542,830.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,367,998.80 : 866,051,998.20 = 560,361,886.80 : x
  2. Step 2: Convert to fraction form
    577,367,998.80/866,051,998.20 = 560,361,886.80/x
  3. Step 3: Cross multiply
    577,367,998.80x = 866,051,998.20 × 560,361,886.80
  4. Step 4: Simplify right side
    577,367,998.80x = 485,302,531,778,262,208
  5. Step 5: Solve for x
    x = 485,302,531,778,262,208/577,367,998.80
  6. Step 6: Final answer
    x = 840,542,830.20

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Similar ratio
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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.