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Finding the Fourth Proportional to 354,320,491.60, 531,480,737.40 and 354,320,491.60

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Solution

The fourth proportional to 354,320,491.60, 531,480,737.40 and 354,320,491.60 is: 531,480,737.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,320,491.60 : 531,480,737.40 = 354,320,491.60 : x
  2. Step 2: Convert to fraction form
    354,320,491.60/531,480,737.40 = 354,320,491.60/x
  3. Step 3: Cross multiply
    354,320,491.60x = 531,480,737.40 × 354,320,491.60
  4. Step 4: Simplify right side
    354,320,491.60x = 188,314,516,151,498,496
  5. Step 5: Solve for x
    x = 188,314,516,151,498,496/354,320,491.60
  6. Step 6: Final answer
    x = 531,480,737.40

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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.