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Finding the Fourth Proportional to 573,445.37, 791,374.96 and 315,342.11

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Solution

The fourth proportional to 573,445.37, 791,374.96 and 315,342.11 is: 435,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,445.37 : 791,374.96 = 315,342.11 : x
  2. Step 2: Convert to fraction form
    573,445.37/791,374.96 = 315,342.11/x
  3. Step 3: Cross multiply
    573,445.37x = 791,374.96 × 315,342.11
  4. Step 4: Simplify right side
    573,445.37x = 249,553,852,060.18
  5. Step 5: Solve for x
    x = 249,553,852,060.18/573,445.37
  6. Step 6: Final answer
    x = 435,183.30

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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.