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Finding the Fourth Proportional to 291,240.94, 401,568.59 and 199,404.76

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Solution

The fourth proportional to 291,240.94, 401,568.59 and 199,404.76 is: 274,943.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,240.94 : 401,568.59 = 199,404.76 : x
  2. Step 2: Convert to fraction form
    291,240.94/401,568.59 = 199,404.76/x
  3. Step 3: Cross multiply
    291,240.94x = 401,568.59 × 199,404.76
  4. Step 4: Simplify right side
    291,240.94x = 80,074,688,312.49
  5. Step 5: Solve for x
    x = 80,074,688,312.49/291,240.94
  6. Step 6: Final answer
    x = 274,943.10

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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.