Home / 690,586.24-953,099.84-388,839.04

Finding the Fourth Proportional to 690,586.24, 953,099.84 and 388,839.04

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Solution

The fourth proportional to 690,586.24, 953,099.84 and 388,839.04 is: 536,649.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,586.24 : 953,099.84 = 388,839.04 : x
  2. Step 2: Convert to fraction form
    690,586.24/953,099.84 = 388,839.04/x
  3. Step 3: Cross multiply
    690,586.24x = 953,099.84 × 388,839.04
  4. Step 4: Simplify right side
    690,586.24x = 370,602,426,809.75
  5. Step 5: Solve for x
    x = 370,602,426,809.75/690,586.24
  6. Step 6: Final answer
    x = 536,649.02

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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.