Home / 543,941.78-815,911.76-144,582.56

Finding the Fourth Proportional to 543,941.78, 815,911.76 and 144,582.56

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Solution

The fourth proportional to 543,941.78, 815,911.76 and 144,582.56 is: 216,873.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,941.78 : 815,911.76 = 144,582.56 : x
  2. Step 2: Convert to fraction form
    543,941.78/815,911.76 = 144,582.56/x
  3. Step 3: Cross multiply
    543,941.78x = 815,911.76 × 144,582.56
  4. Step 4: Simplify right side
    543,941.78x = 117,966,606,192.43
  5. Step 5: Solve for x
    x = 117,966,606,192.43/543,941.78
  6. Step 6: Final answer
    x = 216,873.59

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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.