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Finding the Fourth Proportional to 573,193, 791,123.16 and 392,404.60

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Solution

The fourth proportional to 573,193, 791,123.16 and 392,404.60 is: 541,598.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,193 : 791,123.16 = 392,404.60 : x
  2. Step 2: Convert to fraction form
    573,193/791,123.16 = 392,404.60/x
  3. Step 3: Cross multiply
    573,193x = 791,123.16 × 392,404.60
  4. Step 4: Simplify right side
    573,193x = 310,440,367,150.54
  5. Step 5: Solve for x
    x = 310,440,367,150.54/573,193
  6. Step 6: Final answer
    x = 541,598.32

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Double scale
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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.