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Finding the Fourth Proportional to 477,189.73, 715,673.88 and 210,804.93

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Solution

The fourth proportional to 477,189.73, 715,673.88 and 210,804.93 is: 316,158.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,189.73 : 715,673.88 = 210,804.93 : x
  2. Step 2: Convert to fraction form
    477,189.73/715,673.88 = 210,804.93/x
  3. Step 3: Cross multiply
    477,189.73x = 715,673.88 × 210,804.93
  4. Step 4: Simplify right side
    477,189.73x = 150,867,582,176.23
  5. Step 5: Solve for x
    x = 150,867,582,176.23/477,189.73
  6. Step 6: Final answer
    x = 316,158.48

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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.