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Finding the Fourth Proportional to 593,911.60, 889,117.80 and 394,457.20

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Solution

The fourth proportional to 593,911.60, 889,117.80 and 394,457.20 is: 590,523.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,911.60 : 889,117.80 = 394,457.20 : x
  2. Step 2: Convert to fraction form
    593,911.60/889,117.80 = 394,457.20/x
  3. Step 3: Cross multiply
    593,911.60x = 889,117.80 × 394,457.20
  4. Step 4: Simplify right side
    593,911.60x = 350,718,917,858.16
  5. Step 5: Solve for x
    x = 350,718,917,858.16/593,911.60
  6. Step 6: Final answer
    x = 590,523.77

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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.