Home / 641,764.99-885,600.54-351,320.35

Finding the Fourth Proportional to 641,764.99, 885,600.54 and 351,320.35

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Solution

The fourth proportional to 641,764.99, 885,600.54 and 351,320.35 is: 484,802.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,764.99 : 885,600.54 = 351,320.35 : x
  2. Step 2: Convert to fraction form
    641,764.99/885,600.54 = 351,320.35/x
  3. Step 3: Cross multiply
    641,764.99x = 885,600.54 × 351,320.35
  4. Step 4: Simplify right side
    641,764.99x = 311,129,491,672.99
  5. Step 5: Solve for x
    x = 311,129,491,672.99/641,764.99
  6. Step 6: Final answer
    x = 484,802.84

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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.