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Finding the Fourth Proportional to 611,716,546.80, 917,574,820.20 and 175,043,286.90

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Solution

The fourth proportional to 611,716,546.80, 917,574,820.20 and 175,043,286.90 is: 262,564,930.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,716,546.80 : 917,574,820.20 = 175,043,286.90 : x
  2. Step 2: Convert to fraction form
    611,716,546.80/917,574,820.20 = 175,043,286.90/x
  3. Step 3: Cross multiply
    611,716,546.80x = 917,574,820.20 × 175,043,286.90
  4. Step 4: Simplify right side
    611,716,546.80x = 160,615,312,504,484,544
  5. Step 5: Solve for x
    x = 160,615,312,504,484,544/611,716,546.80
  6. Step 6: Final answer
    x = 262,564,930.35

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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.