Home / 543,945.34-815,917.11-144,586.11

Finding the Fourth Proportional to 543,945.34, 815,917.11 and 144,586.11

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Solution

The fourth proportional to 543,945.34, 815,917.11 and 144,586.11 is: 216,878.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,945.34 : 815,917.11 = 144,586.11 : x
  2. Step 2: Convert to fraction form
    543,945.34/815,917.11 = 144,586.11/x
  3. Step 3: Cross multiply
    543,945.34x = 815,917.11 × 144,586.11
  4. Step 4: Simplify right side
    543,945.34x = 117,970,280,475.14
  5. Step 5: Solve for x
    x = 117,970,280,475.14/543,945.34
  6. Step 6: Final answer
    x = 216,878.93

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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.