Home / 677,875.62-1,015,762.19-392,859.24

Finding the Fourth Proportional to 677,875.62, 1,015,762.19 and 392,859.24

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Solution

The fourth proportional to 677,875.62, 1,015,762.19 and 392,859.24 is: 588,679.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,875.62 : 1,015,762.19 = 392,859.24 : x
  2. Step 2: Convert to fraction form
    677,875.62/1,015,762.19 = 392,859.24/x
  3. Step 3: Cross multiply
    677,875.62x = 1,015,762.19 × 392,859.24
  4. Step 4: Simplify right side
    677,875.62x = 399,051,561,984.14
  5. Step 5: Solve for x
    x = 399,051,561,984.14/677,875.62
  6. Step 6: Final answer
    x = 588,679.62

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1.5x scale

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.