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Finding the Fourth Proportional to 437,364,703.88, 603,564,376.56 and 239,138,989.64

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Solution

The fourth proportional to 437,364,703.88, 603,564,376.56 and 239,138,989.64 is: 330,012,399.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,364,703.88 : 603,564,376.56 = 239,138,989.64 : x
  2. Step 2: Convert to fraction form
    437,364,703.88/603,564,376.56 = 239,138,989.64/x
  3. Step 3: Cross multiply
    437,364,703.88x = 603,564,376.56 × 239,138,989.64
  4. Step 4: Simplify right side
    437,364,703.88x = 144,335,775,193,254,880
  5. Step 5: Solve for x
    x = 144,335,775,193,254,880/437,364,703.88
  6. Step 6: Final answer
    x = 330,012,399.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.