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Finding the Fourth Proportional to 615,168,001.20, 922,752,001.80 and 574,558,618.80

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Solution

The fourth proportional to 615,168,001.20, 922,752,001.80 and 574,558,618.80 is: 861,837,928.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,168,001.20 : 922,752,001.80 = 574,558,618.80 : x
  2. Step 2: Convert to fraction form
    615,168,001.20/922,752,001.80 = 574,558,618.80/x
  3. Step 3: Cross multiply
    615,168,001.20x = 922,752,001.80 × 574,558,618.80
  4. Step 4: Simplify right side
    615,168,001.20x = 530,175,115,649,143,040
  5. Step 5: Solve for x
    x = 530,175,115,649,143,040/615,168,001.20
  6. Step 6: Final answer
    x = 861,837,928.20

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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.