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Finding the Fourth Proportional to 572,548.89, 790,214.65 and 330,971.51

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Solution

The fourth proportional to 572,548.89, 790,214.65 and 330,971.51 is: 456,796.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,548.89 : 790,214.65 = 330,971.51 : x
  2. Step 2: Convert to fraction form
    572,548.89/790,214.65 = 330,971.51/x
  3. Step 3: Cross multiply
    572,548.89x = 790,214.65 × 330,971.51
  4. Step 4: Simplify right side
    572,548.89x = 261,538,535,934.62
  5. Step 5: Solve for x
    x = 261,538,535,934.62/572,548.89
  6. Step 6: Final answer
    x = 456,796.86

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Double scale
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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.