Home / 877,816.82-1,211,909.28-555,802.94

Finding the Fourth Proportional to 877,816.82, 1,211,909.28 and 555,802.94

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Solution

The fourth proportional to 877,816.82, 1,211,909.28 and 555,802.94 is: 767,338.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,816.82 : 1,211,909.28 = 555,802.94 : x
  2. Step 2: Convert to fraction form
    877,816.82/1,211,909.28 = 555,802.94/x
  3. Step 3: Cross multiply
    877,816.82x = 1,211,909.28 × 555,802.94
  4. Step 4: Simplify right side
    877,816.82x = 673,582,741,782.80
  5. Step 5: Solve for x
    x = 673,582,741,782.80/877,816.82
  6. Step 6: Final answer
    x = 767,338.61

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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.