Home / 439,583.52-606,639.60-286,721.76

Finding the Fourth Proportional to 439,583.52, 606,639.60 and 286,721.76

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Solution

The fourth proportional to 439,583.52, 606,639.60 and 286,721.76 is: 395,685.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,583.52 : 606,639.60 = 286,721.76 : x
  2. Step 2: Convert to fraction form
    439,583.52/606,639.60 = 286,721.76/x
  3. Step 3: Cross multiply
    439,583.52x = 606,639.60 × 286,721.76
  4. Step 4: Simplify right side
    439,583.52x = 173,936,773,797.70
  5. Step 5: Solve for x
    x = 173,936,773,797.70/439,583.52
  6. Step 6: Final answer
    x = 395,685.38

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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.