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Finding the Fourth Proportional to 615,168,003.70, 922,752,005.55 and 574,558,621.30

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Solution

The fourth proportional to 615,168,003.70, 922,752,005.55 and 574,558,621.30 is: 861,837,931.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,168,003.70 : 922,752,005.55 = 574,558,621.30 : x
  2. Step 2: Convert to fraction form
    615,168,003.70/922,752,005.55 = 574,558,621.30/x
  3. Step 3: Cross multiply
    615,168,003.70x = 922,752,005.55 × 574,558,621.30
  4. Step 4: Simplify right side
    615,168,003.70x = 530,175,120,110,617,856
  5. Step 5: Solve for x
    x = 530,175,120,110,617,856/615,168,003.70
  6. Step 6: Final answer
    x = 861,837,931.95

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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.