Home / 377,716.32-521,285.40-282,057.12

Finding the Fourth Proportional to 377,716.32, 521,285.40 and 282,057.12

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Solution

The fourth proportional to 377,716.32, 521,285.40 and 282,057.12 is: 389,266.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,716.32 : 521,285.40 = 282,057.12 : x
  2. Step 2: Convert to fraction form
    377,716.32/521,285.40 = 282,057.12/x
  3. Step 3: Cross multiply
    377,716.32x = 521,285.40 × 282,057.12
  4. Step 4: Simplify right side
    377,716.32x = 147,032,258,622.05
  5. Step 5: Solve for x
    x = 147,032,258,622.05/377,716.32
  6. Step 6: Final answer
    x = 389,266.36

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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.