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Finding the Fourth Proportional to 593,743.60, 890,615.40 and 405,737.20

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Solution

The fourth proportional to 593,743.60, 890,615.40 and 405,737.20 is: 608,605.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,743.60 : 890,615.40 = 405,737.20 : x
  2. Step 2: Convert to fraction form
    593,743.60/890,615.40 = 405,737.20/x
  3. Step 3: Cross multiply
    593,743.60x = 890,615.40 × 405,737.20
  4. Step 4: Simplify right side
    593,743.60x = 361,355,798,672.88
  5. Step 5: Solve for x
    x = 361,355,798,672.88/593,743.60
  6. Step 6: Final answer
    x = 608,605.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.