Home / 823,908.40-1,234,307.40-423,185.20

Finding the Fourth Proportional to 823,908.40, 1,234,307.40 and 423,185.20

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Solution

The fourth proportional to 823,908.40, 1,234,307.40 and 423,185.20 is: 633,979.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,908.40 : 1,234,307.40 = 423,185.20 : x
  2. Step 2: Convert to fraction form
    823,908.40/1,234,307.40 = 423,185.20/x
  3. Step 3: Cross multiply
    823,908.40x = 1,234,307.40 × 423,185.20
  4. Step 4: Simplify right side
    823,908.40x = 522,340,623,930.48
  5. Step 5: Solve for x
    x = 522,340,623,930.48/823,908.40
  6. Step 6: Final answer
    x = 633,979.00

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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.