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Finding the Fourth Proportional to 371,457.87, 512,597.48 and 201,688.11

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Solution

The fourth proportional to 371,457.87, 512,597.48 and 201,688.11 is: 278,321.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,457.87 : 512,597.48 = 201,688.11 : x
  2. Step 2: Convert to fraction form
    371,457.87/512,597.48 = 201,688.11/x
  3. Step 3: Cross multiply
    371,457.87x = 512,597.48 × 201,688.11
  4. Step 4: Simplify right side
    371,457.87x = 103,384,816,931.96
  5. Step 5: Solve for x
    x = 103,384,816,931.96/371,457.87
  6. Step 6: Final answer
    x = 278,321.78

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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.