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Finding the Fourth Proportional to 573,801.64, 791,830.36 and 312,148.27

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Solution

The fourth proportional to 573,801.64, 791,830.36 and 312,148.27 is: 430,755.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,801.64 : 791,830.36 = 312,148.27 : x
  2. Step 2: Convert to fraction form
    573,801.64/791,830.36 = 312,148.27/x
  3. Step 3: Cross multiply
    573,801.64x = 791,830.36 × 312,148.27
  4. Step 4: Simplify right side
    573,801.64x = 247,168,477,007.48
  5. Step 5: Solve for x
    x = 247,168,477,007.48/573,801.64
  6. Step 6: Final answer
    x = 430,755.96

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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.