Home / 829,389.20-1,244,083.80-409,485.20

Finding the Fourth Proportional to 829,389.20, 1,244,083.80 and 409,485.20

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Solution

The fourth proportional to 829,389.20, 1,244,083.80 and 409,485.20 is: 614,227.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,389.20 : 1,244,083.80 = 409,485.20 : x
  2. Step 2: Convert to fraction form
    829,389.20/1,244,083.80 = 409,485.20/x
  3. Step 3: Cross multiply
    829,389.20x = 1,244,083.80 × 409,485.20
  4. Step 4: Simplify right side
    829,389.20x = 509,433,903,659.76
  5. Step 5: Solve for x
    x = 509,433,903,659.76/829,389.20
  6. Step 6: Final answer
    x = 614,227.80

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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.