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Finding the Fourth Proportional to 572,451.36, 790,019.76 and 330,744.24

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Solution

The fourth proportional to 572,451.36, 790,019.76 and 330,744.24 is: 456,448.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,451.36 : 790,019.76 = 330,744.24 : x
  2. Step 2: Convert to fraction form
    572,451.36/790,019.76 = 330,744.24/x
  3. Step 3: Cross multiply
    572,451.36x = 790,019.76 × 330,744.24
  4. Step 4: Simplify right side
    572,451.36x = 261,294,485,106.18
  5. Step 5: Solve for x
    x = 261,294,485,106.18/572,451.36
  6. Step 6: Final answer
    x = 456,448.36

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.