Home / 770,510.26-1,063,231.74-521,645.97

Finding the Fourth Proportional to 770,510.26, 1,063,231.74 and 521,645.97

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Solution

The fourth proportional to 770,510.26, 1,063,231.74 and 521,645.97 is: 719,822.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,510.26 : 1,063,231.74 = 521,645.97 : x
  2. Step 2: Convert to fraction form
    770,510.26/1,063,231.74 = 521,645.97/x
  3. Step 3: Cross multiply
    770,510.26x = 1,063,231.74 × 521,645.97
  4. Step 4: Simplify right side
    770,510.26x = 554,630,549,854.85
  5. Step 5: Solve for x
    x = 554,630,549,854.85/770,510.26
  6. Step 6: Final answer
    x = 719,822.41

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1.5x scale

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.