Home / 439,008.58-605,819.40-257,717.62

Finding the Fourth Proportional to 439,008.58, 605,819.40 and 257,717.62

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Solution

The fourth proportional to 439,008.58, 605,819.40 and 257,717.62 is: 355,643.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,008.58 : 605,819.40 = 257,717.62 : x
  2. Step 2: Convert to fraction form
    439,008.58/605,819.40 = 257,717.62/x
  3. Step 3: Cross multiply
    439,008.58x = 605,819.40 × 257,717.62
  4. Step 4: Simplify right side
    439,008.58x = 156,130,333,917.83
  5. Step 5: Solve for x
    x = 156,130,333,917.83/439,008.58
  6. Step 6: Final answer
    x = 355,643.01

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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.