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Finding the Fourth Proportional to 398,631,801.80, 597,947,702.70 and 183,640,953.80

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Solution

The fourth proportional to 398,631,801.80, 597,947,702.70 and 183,640,953.80 is: 275,461,430.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,631,801.80 : 597,947,702.70 = 183,640,953.80 : x
  2. Step 2: Convert to fraction form
    398,631,801.80/597,947,702.70 = 183,640,953.80/x
  3. Step 3: Cross multiply
    398,631,801.80x = 597,947,702.70 × 183,640,953.80
  4. Step 4: Simplify right side
    398,631,801.80x = 109,807,686,446,346,848
  5. Step 5: Solve for x
    x = 109,807,686,446,346,848/398,631,801.80
  6. Step 6: Final answer
    x = 275,461,430.70

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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.