Home / 769,530.84-1,061,947.38-429,999.88

Finding the Fourth Proportional to 769,530.84, 1,061,947.38 and 429,999.88

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Solution

The fourth proportional to 769,530.84, 1,061,947.38 and 429,999.88 is: 593,396.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,530.84 : 1,061,947.38 = 429,999.88 : x
  2. Step 2: Convert to fraction form
    769,530.84/1,061,947.38 = 429,999.88/x
  3. Step 3: Cross multiply
    769,530.84x = 1,061,947.38 × 429,999.88
  4. Step 4: Simplify right side
    769,530.84x = 456,637,245,966.31
  5. Step 5: Solve for x
    x = 456,637,245,966.31/769,530.84
  6. Step 6: Final answer
    x = 593,396.94

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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.