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Finding the Fourth Proportional to 616,973.68, 923,790.84 and 403,208.92

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Solution

The fourth proportional to 616,973.68, 923,790.84 and 403,208.92 is: 603,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,973.68 : 923,790.84 = 403,208.92 : x
  2. Step 2: Convert to fraction form
    616,973.68/923,790.84 = 403,208.92/x
  3. Step 3: Cross multiply
    616,973.68x = 923,790.84 × 403,208.92
  4. Step 4: Simplify right side
    616,973.68x = 372,480,706,902.29
  5. Step 5: Solve for x
    x = 372,480,706,902.29/616,973.68
  6. Step 6: Final answer
    x = 603,722.20

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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.