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Finding the Fourth Proportional to 406,899.01, 610,381.71 and 204,390.93

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Solution

The fourth proportional to 406,899.01, 610,381.71 and 204,390.93 is: 306,603.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,899.01 : 610,381.71 = 204,390.93 : x
  2. Step 2: Convert to fraction form
    406,899.01/610,381.71 = 204,390.93/x
  3. Step 3: Cross multiply
    406,899.01x = 610,381.71 × 204,390.93
  4. Step 4: Simplify right side
    406,899.01x = 124,756,484,217.43
  5. Step 5: Solve for x
    x = 124,756,484,217.43/406,899.01
  6. Step 6: Final answer
    x = 306,603.07

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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.