Home / 992,125.44-1,369,125.72-539,416.44

Finding the Fourth Proportional to 992,125.44, 1,369,125.72 and 539,416.44

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Solution

The fourth proportional to 992,125.44, 1,369,125.72 and 539,416.44 is: 744,390.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,125.44 : 1,369,125.72 = 539,416.44 : x
  2. Step 2: Convert to fraction form
    992,125.44/1,369,125.72 = 539,416.44/x
  3. Step 3: Cross multiply
    992,125.44x = 1,369,125.72 × 539,416.44
  4. Step 4: Simplify right side
    992,125.44x = 738,528,921,794.84
  5. Step 5: Solve for x
    x = 738,528,921,794.84/992,125.44
  6. Step 6: Final answer
    x = 744,390.67

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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.