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Finding the Fourth Proportional to 400,911,060.80, 601,366,591.20 and 400,911,060.80

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Solution

The fourth proportional to 400,911,060.80, 601,366,591.20 and 400,911,060.80 is: 601,366,591.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,911,060.80 : 601,366,591.20 = 400,911,060.80 : x
  2. Step 2: Convert to fraction form
    400,911,060.80/601,366,591.20 = 400,911,060.80/x
  3. Step 3: Cross multiply
    400,911,060.80x = 601,366,591.20 × 400,911,060.80
  4. Step 4: Simplify right side
    400,911,060.80x = 241,094,518,007,671,968
  5. Step 5: Solve for x
    x = 241,094,518,007,671,968/400,911,060.80
  6. Step 6: Final answer
    x = 601,366,591.20

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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.