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Finding the Fourth Proportional to 574,903,207.80, 862,480,782.90 and 186,659,969.40

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Solution

The fourth proportional to 574,903,207.80, 862,480,782.90 and 186,659,969.40 is: 280,030,854.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,903,207.80 : 862,480,782.90 = 186,659,969.40 : x
  2. Step 2: Convert to fraction form
    574,903,207.80/862,480,782.90 = 186,659,969.40/x
  3. Step 3: Cross multiply
    574,903,207.80x = 862,480,782.90 × 186,659,969.40
  4. Step 4: Simplify right side
    574,903,207.80x = 160,990,636,544,202,048
  5. Step 5: Solve for x
    x = 160,990,636,544,202,048/574,903,207.80
  6. Step 6: Final answer
    x = 280,030,854.52

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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.