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Finding the Fourth Proportional to 593,218.02, 818,636.14 and 321,279.65

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Solution

The fourth proportional to 593,218.02, 818,636.14 and 321,279.65 is: 443,363.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,218.02 : 818,636.14 = 321,279.65 : x
  2. Step 2: Convert to fraction form
    593,218.02/818,636.14 = 321,279.65/x
  3. Step 3: Cross multiply
    593,218.02x = 818,636.14 × 321,279.65
  4. Step 4: Simplify right side
    593,218.02x = 263,011,132,536.55
  5. Step 5: Solve for x
    x = 263,011,132,536.55/593,218.02
  6. Step 6: Final answer
    x = 443,363.36

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Double scale
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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.