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Finding the Fourth Proportional to 573,787.22, 791,815.32 and 315,649.08

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Solution

The fourth proportional to 573,787.22, 791,815.32 and 315,649.08 is: 435,589.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,787.22 : 791,815.32 = 315,649.08 : x
  2. Step 2: Convert to fraction form
    573,787.22/791,815.32 = 315,649.08/x
  3. Step 3: Cross multiply
    573,787.22x = 791,815.32 × 315,649.08
  4. Step 4: Simplify right side
    573,787.22x = 249,935,777,287.91
  5. Step 5: Solve for x
    x = 249,935,777,287.91/573,787.22
  6. Step 6: Final answer
    x = 435,589.66

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1.5x scale

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.