Home / 457,068.28-685,711.77-190,680.74

Finding the Fourth Proportional to 457,068.28, 685,711.77 and 190,680.74

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Solution

The fourth proportional to 457,068.28, 685,711.77 and 190,680.74 is: 286,066.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,068.28 : 685,711.77 = 190,680.74 : x
  2. Step 2: Convert to fraction form
    457,068.28/685,711.77 = 190,680.74/x
  3. Step 3: Cross multiply
    457,068.28x = 685,711.77 × 190,680.74
  4. Step 4: Simplify right side
    457,068.28x = 130,752,027,730.31
  5. Step 5: Solve for x
    x = 130,752,027,730.31/457,068.28
  6. Step 6: Final answer
    x = 286,066.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.