Home / 1,286,560.11-1,929,909.42-339,905.01

Finding the Fourth Proportional to 1,286,560.11, 1,929,909.42 and 339,905.01

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Solution

The fourth proportional to 1,286,560.11, 1,929,909.42 and 339,905.01 is: 509,875.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,560.11 : 1,929,909.42 = 339,905.01 : x
  2. Step 2: Convert to fraction form
    1,286,560.11/1,929,909.42 = 339,905.01/x
  3. Step 3: Cross multiply
    1,286,560.11x = 1,929,909.42 × 339,905.01
  4. Step 4: Simplify right side
    1,286,560.11x = 655,985,880,704.19
  5. Step 5: Solve for x
    x = 655,985,880,704.19/1,286,560.11
  6. Step 6: Final answer
    x = 509,875.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.