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Finding the Fourth Proportional to 404,352,671.60, 606,529,007.40 and 400,321,593.20

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Solution

The fourth proportional to 404,352,671.60, 606,529,007.40 and 400,321,593.20 is: 600,482,389.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,352,671.60 : 606,529,007.40 = 400,321,593.20 : x
  2. Step 2: Convert to fraction form
    404,352,671.60/606,529,007.40 = 400,321,593.20/x
  3. Step 3: Cross multiply
    404,352,671.60x = 606,529,007.40 × 400,321,593.20
  4. Step 4: Simplify right side
    404,352,671.60x = 242,806,658,564,382,560
  5. Step 5: Solve for x
    x = 242,806,658,564,382,560/404,352,671.60
  6. Step 6: Final answer
    x = 600,482,389.80

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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.