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Finding the Fourth Proportional to 399,603.93, 596,490.94 and 349,158.03

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Solution

The fourth proportional to 399,603.93, 596,490.94 and 349,158.03 is: 521,190.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,603.93 : 596,490.94 = 349,158.03 : x
  2. Step 2: Convert to fraction form
    399,603.93/596,490.94 = 349,158.03/x
  3. Step 3: Cross multiply
    399,603.93x = 596,490.94 × 349,158.03
  4. Step 4: Simplify right side
    399,603.93x = 208,269,600,650.35
  5. Step 5: Solve for x
    x = 208,269,600,650.35/399,603.93
  6. Step 6: Final answer
    x = 521,190.07

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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.