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Finding the Fourth Proportional to 570,361,220.57, 854,068,392.33 and 393,643,656.68

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Solution

The fourth proportional to 570,361,220.57, 854,068,392.33 and 393,643,656.68 is: 589,448,568.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,361,220.57 : 854,068,392.33 = 393,643,656.68 : x
  2. Step 2: Convert to fraction form
    570,361,220.57/854,068,392.33 = 393,643,656.68/x
  3. Step 3: Cross multiply
    570,361,220.57x = 854,068,392.33 × 393,643,656.68
  4. Step 4: Simplify right side
    570,361,220.57x = 336,198,605,007,319,744
  5. Step 5: Solve for x
    x = 336,198,605,007,319,744/570,361,220.57
  6. Step 6: Final answer
    x = 589,448,568.53

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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.