Home / 929,897.81-1,283,205.53-521,961.65

Finding the Fourth Proportional to 929,897.81, 1,283,205.53 and 521,961.65

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Solution

The fourth proportional to 929,897.81, 1,283,205.53 and 521,961.65 is: 720,277.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,897.81 : 1,283,205.53 = 521,961.65 : x
  2. Step 2: Convert to fraction form
    929,897.81/1,283,205.53 = 521,961.65/x
  3. Step 3: Cross multiply
    929,897.81x = 1,283,205.53 × 521,961.65
  4. Step 4: Simplify right side
    929,897.81x = 669,784,073,118.12
  5. Step 5: Solve for x
    x = 669,784,073,118.12/929,897.81
  6. Step 6: Final answer
    x = 720,277.07

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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.