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Finding the Fourth Proportional to 562,178,880.88, 775,696,606.32 and 353,213,956.60

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Solution

The fourth proportional to 562,178,880.88, 775,696,606.32 and 353,213,956.60 is: 487,365,991.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,178,880.88 : 775,696,606.32 = 353,213,956.60 : x
  2. Step 2: Convert to fraction form
    562,178,880.88/775,696,606.32 = 353,213,956.60/x
  3. Step 3: Cross multiply
    562,178,880.88x = 775,696,606.32 × 353,213,956.60
  4. Step 4: Simplify right side
    562,178,880.88x = 273,986,867,439,479,808
  5. Step 5: Solve for x
    x = 273,986,867,439,479,808/562,178,880.88
  6. Step 6: Final answer
    x = 487,365,991.07

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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.