Home / 929,969.20-1,394,953.80-398,528.20

Finding the Fourth Proportional to 929,969.20, 1,394,953.80 and 398,528.20

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Solution

The fourth proportional to 929,969.20, 1,394,953.80 and 398,528.20 is: 597,792.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,969.20 : 1,394,953.80 = 398,528.20 : x
  2. Step 2: Convert to fraction form
    929,969.20/1,394,953.80 = 398,528.20/x
  3. Step 3: Cross multiply
    929,969.20x = 1,394,953.80 × 398,528.20
  4. Step 4: Simplify right side
    929,969.20x = 555,928,426,997.16
  5. Step 5: Solve for x
    x = 555,928,426,997.16/929,969.20
  6. Step 6: Final answer
    x = 597,792.30

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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.