Home / 623,943.20-936,087.60-413,991.20

Finding the Fourth Proportional to 623,943.20, 936,087.60 and 413,991.20

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Solution

The fourth proportional to 623,943.20, 936,087.60 and 413,991.20 is: 621,101.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,943.20 : 936,087.60 = 413,991.20 : x
  2. Step 2: Convert to fraction form
    623,943.20/936,087.60 = 413,991.20/x
  3. Step 3: Cross multiply
    623,943.20x = 936,087.60 × 413,991.20
  4. Step 4: Simplify right side
    623,943.20x = 387,532,028,829.12
  5. Step 5: Solve for x
    x = 387,532,028,829.12/623,943.20
  6. Step 6: Final answer
    x = 621,101.45

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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.