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Finding the Fourth Proportional to 615,167,999.20, 922,751,998.80 and 574,558,616.80

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Solution

The fourth proportional to 615,167,999.20, 922,751,998.80 and 574,558,616.80 is: 861,837,925.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,167,999.20 : 922,751,998.80 = 574,558,616.80 : x
  2. Step 2: Convert to fraction form
    615,167,999.20/922,751,998.80 = 574,558,616.80/x
  3. Step 3: Cross multiply
    615,167,999.20x = 922,751,998.80 × 574,558,616.80
  4. Step 4: Simplify right side
    615,167,999.20x = 530,175,112,079,963,200
  5. Step 5: Solve for x
    x = 530,175,112,079,963,200/615,167,999.20
  6. Step 6: Final answer
    x = 861,837,925.20

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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.