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Finding the Fourth Proportional to 573,490.38, 791,436.60 and 315,377.88

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Solution

The fourth proportional to 573,490.38, 791,436.60 and 315,377.88 is: 435,232.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,490.38 : 791,436.60 = 315,377.88 : x
  2. Step 2: Convert to fraction form
    573,490.38/791,436.60 = 315,377.88/x
  3. Step 3: Cross multiply
    573,490.38x = 791,436.60 × 315,377.88
  4. Step 4: Simplify right side
    573,490.38x = 249,601,597,062.41
  5. Step 5: Solve for x
    x = 249,601,597,062.41/573,490.38
  6. Step 6: Final answer
    x = 435,232.40

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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.