Home / 636,139.20-877,955.04-410,441.28

Finding the Fourth Proportional to 636,139.20, 877,955.04 and 410,441.28

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Solution

The fourth proportional to 636,139.20, 877,955.04 and 410,441.28 is: 566,462.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,139.20 : 877,955.04 = 410,441.28 : x
  2. Step 2: Convert to fraction form
    636,139.20/877,955.04 = 410,441.28/x
  3. Step 3: Cross multiply
    636,139.20x = 877,955.04 × 410,441.28
  4. Step 4: Simplify right side
    636,139.20x = 360,348,990,400.05
  5. Step 5: Solve for x
    x = 360,348,990,400.05/636,139.20
  6. Step 6: Final answer
    x = 566,462.48

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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.