Home / 381,914.04-526,608.93-243,911.59

Finding the Fourth Proportional to 381,914.04, 526,608.93 and 243,911.59

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Solution

The fourth proportional to 381,914.04, 526,608.93 and 243,911.59 is: 336,321.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,914.04 : 526,608.93 = 243,911.59 : x
  2. Step 2: Convert to fraction form
    381,914.04/526,608.93 = 243,911.59/x
  3. Step 3: Cross multiply
    381,914.04x = 526,608.93 × 243,911.59
  4. Step 4: Simplify right side
    381,914.04x = 128,446,021,424.50
  5. Step 5: Solve for x
    x = 128,446,021,424.50/381,914.04
  6. Step 6: Final answer
    x = 336,321.81

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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.