Home / 557,570.28-769,432-328,141.06

Finding the Fourth Proportional to 557,570.28, 769,432 and 328,141.06

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Solution

The fourth proportional to 557,570.28, 769,432 and 328,141.06 is: 452,825.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,570.28 : 769,432 = 328,141.06 : x
  2. Step 2: Convert to fraction form
    557,570.28/769,432 = 328,141.06/x
  3. Step 3: Cross multiply
    557,570.28x = 769,432 × 328,141.06
  4. Step 4: Simplify right side
    557,570.28x = 252,482,232,077.92
  5. Step 5: Solve for x
    x = 252,482,232,077.92/557,570.28
  6. Step 6: Final answer
    x = 452,825.84

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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.