Home / 528,098.20-792,536.10-212,781.40

Finding the Fourth Proportional to 528,098.20, 792,536.10 and 212,781.40

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Solution

The fourth proportional to 528,098.20, 792,536.10 and 212,781.40 is: 319,328.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,098.20 : 792,536.10 = 212,781.40 : x
  2. Step 2: Convert to fraction form
    528,098.20/792,536.10 = 212,781.40/x
  3. Step 3: Cross multiply
    528,098.20x = 792,536.10 × 212,781.40
  4. Step 4: Simplify right side
    528,098.20x = 168,636,940,908.54
  5. Step 5: Solve for x
    x = 168,636,940,908.54/528,098.20
  6. Step 6: Final answer
    x = 319,328.76

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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.