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Finding the Fourth Proportional to 399,609.93, 596,499.88 and 349,164.03

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Solution

The fourth proportional to 399,609.93, 596,499.88 and 349,164.03 is: 521,199.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,609.93 : 596,499.88 = 349,164.03 : x
  2. Step 2: Convert to fraction form
    399,609.93/596,499.88 = 349,164.03/x
  3. Step 3: Cross multiply
    399,609.93x = 596,499.88 × 349,164.03
  4. Step 4: Simplify right side
    399,609.93x = 208,276,301,122.41
  5. Step 5: Solve for x
    x = 208,276,301,122.41/399,609.93
  6. Step 6: Final answer
    x = 521,199.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.