Home / 579,805.11-869,914.83-352,563.06

Finding the Fourth Proportional to 579,805.11, 869,914.83 and 352,563.06

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Solution

The fourth proportional to 579,805.11, 869,914.83 and 352,563.06 is: 528,970.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,805.11 : 869,914.83 = 352,563.06 : x
  2. Step 2: Convert to fraction form
    579,805.11/869,914.83 = 352,563.06/x
  3. Step 3: Cross multiply
    579,805.11x = 869,914.83 × 352,563.06
  4. Step 4: Simplify right side
    579,805.11x = 306,699,834,404.18
  5. Step 5: Solve for x
    x = 306,699,834,404.18/579,805.11
  6. Step 6: Final answer
    x = 528,970.56

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Double scale
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1.5x scale

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.