Home / 407,127.50-561,777.76-243,744.86

Finding the Fourth Proportional to 407,127.50, 561,777.76 and 243,744.86

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Solution

The fourth proportional to 407,127.50, 561,777.76 and 243,744.86 is: 336,333.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,127.50 : 561,777.76 = 243,744.86 : x
  2. Step 2: Convert to fraction form
    407,127.50/561,777.76 = 243,744.86/x
  3. Step 3: Cross multiply
    407,127.50x = 561,777.76 × 243,744.86
  4. Step 4: Simplify right side
    407,127.50x = 136,930,438,044.06
  5. Step 5: Solve for x
    x = 136,930,438,044.06/407,127.50
  6. Step 6: Final answer
    x = 336,333.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.