Home / 680,795.16-939,355.02-394,298.16

Finding the Fourth Proportional to 680,795.16, 939,355.02 and 394,298.16

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Solution

The fourth proportional to 680,795.16, 939,355.02 and 394,298.16 is: 544,049.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,795.16 : 939,355.02 = 394,298.16 : x
  2. Step 2: Convert to fraction form
    680,795.16/939,355.02 = 394,298.16/x
  3. Step 3: Cross multiply
    680,795.16x = 939,355.02 × 394,298.16
  4. Step 4: Simplify right side
    680,795.16x = 370,385,955,972.76
  5. Step 5: Solve for x
    x = 370,385,955,972.76/680,795.16
  6. Step 6: Final answer
    x = 544,049.04

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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.