Home / 439,217.64-606,185.28-278,087.70

Finding the Fourth Proportional to 439,217.64, 606,185.28 and 278,087.70

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Solution

The fourth proportional to 439,217.64, 606,185.28 and 278,087.70 is: 383,802.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,217.64 : 606,185.28 = 278,087.70 : x
  2. Step 2: Convert to fraction form
    439,217.64/606,185.28 = 278,087.70/x
  3. Step 3: Cross multiply
    439,217.64x = 606,185.28 × 278,087.70
  4. Step 4: Simplify right side
    439,217.64x = 168,572,670,289.06
  5. Step 5: Solve for x
    x = 168,572,670,289.06/439,217.64
  6. Step 6: Final answer
    x = 383,802.14

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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.