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Finding the Fourth Proportional to 471,852.46, 708,083.05 and 172,307.98

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Solution

The fourth proportional to 471,852.46, 708,083.05 and 172,307.98 is: 258,573.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,852.46 : 708,083.05 = 172,307.98 : x
  2. Step 2: Convert to fraction form
    471,852.46/708,083.05 = 172,307.98/x
  3. Step 3: Cross multiply
    471,852.46x = 708,083.05 × 172,307.98
  4. Step 4: Simplify right side
    471,852.46x = 122,008,360,017.74
  5. Step 5: Solve for x
    x = 122,008,360,017.74/471,852.46
  6. Step 6: Final answer
    x = 258,573.11

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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.