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Finding the Fourth Proportional to 528,098.70, 792,050.85 and 328,061.10

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Solution

The fourth proportional to 528,098.70, 792,050.85 and 328,061.10 is: 492,031.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,098.70 : 792,050.85 = 328,061.10 : x
  2. Step 2: Convert to fraction form
    528,098.70/792,050.85 = 328,061.10/x
  3. Step 3: Cross multiply
    528,098.70x = 792,050.85 × 328,061.10
  4. Step 4: Simplify right side
    528,098.70x = 259,841,073,106.94
  5. Step 5: Solve for x
    x = 259,841,073,106.94/528,098.70
  6. Step 6: Final answer
    x = 492,031.27

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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.