Home / 691,259.40-953,942.67-385,355.21

Finding the Fourth Proportional to 691,259.40, 953,942.67 and 385,355.21

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Solution

The fourth proportional to 691,259.40, 953,942.67 and 385,355.21 is: 531,792.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,259.40 : 953,942.67 = 385,355.21 : x
  2. Step 2: Convert to fraction form
    691,259.40/953,942.67 = 385,355.21/x
  3. Step 3: Cross multiply
    691,259.40x = 953,942.67 × 385,355.21
  4. Step 4: Simplify right side
    691,259.40x = 367,606,773,156.10
  5. Step 5: Solve for x
    x = 367,606,773,156.10/691,259.40
  6. Step 6: Final answer
    x = 531,792.80

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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.